Problème serveur craftbukkit

Mayeul04

"Mayeul est le maitre" xNeo_Toxic
26 Juillet 2012
1 335
206
187
24
Hey !
Hier en lançant mon serveur, il a bien commencé, puis le même texte a commencer à defiler pendant 40 secondes, avant que le serveur ne se stoppe tout seul. Impossible de le rallumer, et je n'ai rien installé/changé avant le bug.
Voilà le texte défilant :
 
Tu as un fichier log qui consigne tout. Là on a juste un bout d'erreur, ce n'est pas très interprétable. As-tu éteints ton serveur autrement qu'avec la commande /stop ?
 
je n'ai pas de fichier Log, et j'éteint toujours mon serveur proprement, je ne vois pas d'où ça peux venir...
 
Il est tellement gros qu'il fait planter mon firefox quand je le colle...

Voilà à peu près un centième du code :
Code:
2012-09-12 18:04:41 [INFO] Starting minecraft server version 1.3.1
2012-09-12 18:04:41 [INFO] Loading properties
2012-09-12 18:04:41 [INFO] Default game type: SURVIVAL
2012-09-12 18:04:41 [INFO] Generating keypair
2012-09-12 18:04:42 [INFO] Starting Minecraft server on *:25565
2012-09-12 18:04:42 [WARNING] **** SERVER IS RUNNING IN OFFLINE/INSECURE MODE!
2012-09-12 18:04:42 [WARNING] The server will make no attempt to authenticate usernames. Beware.
2012-09-12 18:04:42 [WARNING] While this makes the game possible to play without internet access, it also opens up the ability for hackers to connect with any username they choose.
2012-09-12 18:04:42 [WARNING] To change this, set "online-mode" to "true" in the server.properties file.
2012-09-12 18:04:42 [INFO] This server is running CraftBukkit version git-Bukkit-1.3.1-R1.0-b2320jnks (MC: 1.3.1) (Implementing API version 1.3.1-R1.0)
2012-09-12 18:04:43 [SEVERE] Could not load 'plugins\XrayInformer.jar' in folder 'plugins'
org.bukkit.plugin.UnknownDependencyException: LogBlock
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:195)
    at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:222)
    at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer.java:198)
    at net.minecraft.server.ServerConfigurationManagerAbstract.<init>(ServerConfigurationManagerAbstract.java:50)
    at net.minecraft.server.ServerConfigurationManager.<init>(SourceFile:11)
    at net.minecraft.server.DedicatedServer.init(DedicatedServer.java:105)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:380)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
2012-09-12 18:04:43 [SEVERE] Could not load 'plugins\ChatManager.jar' in folder 'plugins'
org.bukkit.plugin.UnknownDependencyException: PermissionsEx
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:195)
    at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:222)
    at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer.java:198)
    at net.minecraft.server.ServerConfigurationManagerAbstract.<init>(ServerConfigurationManagerAbstract.java:50)
    at net.minecraft.server.ServerConfigurationManager.<init>(SourceFile:11)
    at net.minecraft.server.DedicatedServer.init(DedicatedServer.java:105)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:380)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
2012-09-12 18:04:43 [SEVERE] Could not load 'plugins\SpoutMats.jar' in folder 'plugins'
org.bukkit.plugin.UnknownDependencyException: Spout
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:195)
    at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:222)
    at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer.java:198)
    at net.minecraft.server.ServerConfigurationManagerAbstract.<init>(ServerConfigurationManagerAbstract.java:50)
    at net.minecraft.server.ServerConfigurationManager.<init>(SourceFile:11)
    at net.minecraft.server.DedicatedServer.init(DedicatedServer.java:105)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:380)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
2012-09-12 18:04:43 [WARNING] ----- Bukkit Auto Updater -----
2012-09-12 18:04:43 [WARNING] Your version of CraftBukkit is out of date. Version 1.3.1-R2.0 (build #2340) was released on Sun Aug 19 12:52:49 CEST 2012.
2012-09-12 18:04:43 [WARNING] Details: http://dl.bukkit.org/downloads/craftbukkit/view/01371_1.3.1-R2.0/
2012-09-12 18:04:43 [WARNING] Download: http://dl.bukkit.org/downloads/craftbukkit/get/01371_1.3.1-R2.0/craftbukkit.jar
2012-09-12 18:04:43 [WARNING] ----- ------------------- -----
2012-09-12 18:04:43 [SEVERE] Could not load 'plugins\Alerter.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: org/bukkit/event/block/BlockListener
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:153)
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:305)
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:230)
    at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:222)
    at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer.java:198)
    at net.minecraft.server.ServerConfigurationManagerAbstract.<init>(ServerConfigurationManagerAbstract.java:50)
    at net.minecraft.server.ServerConfigurationManager.<init>(SourceFile:11)
    at net.minecraft.server.DedicatedServer.init(DedicatedServer.java:105)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:380)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NoClassDefFoundError: org/bukkit/event/block/BlockListener
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(Unknown Source)
    at java.security.SecureClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.access$100(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:41)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:29)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at me.Patrick_pk91.alerter.Alerter.<init>(Alerter.java:86)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:149)
    ... 9 more
Caused by: java.lang.ClassNotFoundException: org.bukkit.event.block.BlockListener
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:41)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:29)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 28 more
2012-09-12 18:04:43 [SEVERE] Could not load 'plugins\MoveCraft.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: org/bukkit/event/player/PlayerListener
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:153)
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:305)
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:230)
    at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:222)
    at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer.java:198)
    at net.minecraft.server.ServerConfigurationManagerAbstract.<init>(ServerConfigurationManagerAbstract.java:50)
    at net.minecraft.server.ServerConfigurationManager.<init>(SourceFile:11)
    at net.minecraft.server.DedicatedServer.init(DedicatedServer.java:105)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:380)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NoClassDefFoundError: org/bukkit/event/player/PlayerListener
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(Unknown Source)
    at java.security.SecureClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.access$100(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:41)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:29)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at com.sycoprime.movecraft.MoveCraft.<init>(MoveCraft.java:43)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:149)
    ... 9 more
Caused by: java.lang.ClassNotFoundException: org.bukkit.event.player.PlayerListener
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:41)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:29)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 28 more
2012-09-12 18:04:43 [SEVERE] Could not load 'plugins\DeathTpPlus.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: org/bukkit/event/entity/EntityListener
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:153)
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:305)
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:230)
    at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:222)
    at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer.java:198)
    at net.minecraft.server.ServerConfigurationManagerAbstract.<init>(ServerConfigurationManagerAbstract.java:50)
    at net.minecraft.server.ServerConfigurationManager.<init>(SourceFile:11)
    at net.minecraft.server.DedicatedServer.init(DedicatedServer.java:105)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:380)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NoClassDefFoundError: org/bukkit/event/entity/EntityListener
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(Unknown Source)
    at java.security.SecureClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.access$100(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:41)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:29)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at com.lonelydime.DeathTpPlus.DeathTpPlus.<init>(DeathTpPlus.java:39)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:149)
    ... 9 more
Caused by: java.lang.ClassNotFoundException: org.bukkit.event.entity.EntityListener
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:41)
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:29)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 28 more
2012-09-12 18:04:43 [INFO] [ColorCarts] Loading ColorCarts v1.0
2012-09-12 18:04:43 [INFO] [MultiInv] Loading MultiInv v3.1.1
2012-09-12 18:04:43 [INFO] [GroupManager] Loading GroupManager v2.0 (2.9.2) (Phoenix)
2012-09-12 18:04:43 [INFO] [WorldEdit] Loading WorldEdit v5.3
2012-09-12 18:04:43 [INFO] [DAC] Loading DAC v1.3.0
2012-09-12 18:04:43 [INFO] [Vault] Loading Vault v1.2.17-b224
2012-09-12 18:04:43 [INFO] [MarriagePlus] Loading MarriagePlus v1.0
2012-09-12 18:04:43 [INFO] [Multiverse-Core] Loading Multiverse-Core v2.4-b527
2012-09-12 18:04:43 [INFO] [LWC-Economy] Loading LWC-Economy v1.3
2012-09-12 18:04:43 [INFO] [HeadBlocks] Loading HeadBlocks v0.6
2012-09-12 18:04:43 [INFO] [WorldGuard] Loading WorldGuard v5.5.3
2012-09-12 18:04:43 [INFO] [AntiCreeper3] Loading AntiCreeper3 v3.6.2
2012-09-12 18:04:43 [INFO] [AutoMessage] Loading AutoMessage v1.5
2012-09-12 18:04:43 [INFO] [iConomy] Loading iConomy v6.0.9b
2012-09-12 18:04:43 [INFO] [GenOre] Loading GenOre v1.0.0
2012-09-12 18:04:43 [INFO] [CoreProtect] Loading CoreProtect v1.53
2012-09-12 18:04:43 [INFO] [BleedingMobs] Loading BleedingMobs v3.6d
2012-09-12 18:04:43 [INFO] [Modifyworld] Loading Modifyworld v1.19.3
2012-09-12 18:04:43 [INFO] [MobArena] Loading MobArena v0.94.4.80
2012-09-12 18:04:43 [INFO] [MobDisguise] Loading MobDisguise v1.81
2012-09-12 18:04:43 [INFO] [PetCreeper] Loading PetCreeper v1.2.0
2012-09-12 18:04:43 [INFO] [Essentials] Loading Essentials v2.9.2
2012-09-12 18:04:43 [INFO] [Jobs] Loading Jobs v2.8.5
2012-09-12 18:04:43 [INFO] [EssentialsProtect] Loading EssentialsProtect v2.9.1
2012-09-12 18:04:44 [INFO] MLog clients using java 1.4+ standard logging.
2012-09-12 18:04:44 [INFO] [EssentialsSpawn] Loading EssentialsSpawn v2.9.2
2012-09-12 18:04:44 [INFO] [CreativeGates] Loading CreativeGates v1.3.5
2012-09-12 18:04:44 [INFO] [VanishNoPacket] Loading VanishNoPacket v3.12
2012-09-12 18:04:44 [INFO] [LWC] Loading LWC v4.3.0 (b736-git-1b1150b1) (August 08, 2012)
2012-09-12 18:04:44 [INFO] [EssentialsChat] Loading EssentialsChat v2.9.2
2012-09-12 18:04:44 [INFO] [Factions] Loading Factions v1.6.9
2012-09-12 18:04:44 [INFO] [PvPBounty] Loading PvPBounty v2.0
2012-09-12 18:04:44 [INFO] [Vault] Enabling Vault v1.2.17-b224
2012-09-12 18:04:44 [INFO] [Vault][Economy] Essentials Economy found: Waiting
2012-09-12 18:04:44 [WARNING] iConomy6 - If you are using Flatfile storage be aware that iCo6 has a CRITICAL bug which can wipe ALL iconomy data.
2012-09-12 18:04:44 [WARNING] if you're using Votifier, or any other plugin which handles economy data in a threaded manner your server is at risk!
2012-09-12 18:04:44 [WARNING] it is highly suggested to use SQL with iCo6 or to use an alternative economy plugin!
2012-09-12 18:04:44 [INFO] [Vault][Economy] iConomy 6 found: Waiting
2012-09-12 18:04:44 [INFO] [Vault][Permission] GroupManager found: Waiting
2012-09-12 18:04:44 [INFO] [Vault][Permission] SuperPermissions loaded as backup permission system.
2012-09-12 18:04:44 [INFO] [Vault][Chat] GroupManager found: Waiting
2012-09-12 18:04:44 [INFO] [Vault] Enabled Version 1.2.17-b224
2012-09-12 18:04:44 [INFO] [LWC] Enabling LWC v4.3.0 (b736-git-1b1150b1) (August 08, 2012)
2012-09-12 18:04:44 [INFO] [LWC] Loaded 209 locale strings (0 overrides)
2012-09-12 18:04:44 [INFO] [LWC] Permissions API: §4VaultPermissions
2012-09-12 18:04:44 [INFO] [LWC] Currency API: §4VaultCurrency
2012-09-12 18:04:44 [INFO] [LWC] Connecting to SQLite
2012-09-12 18:04:44 [INFO] [LWC] Performing any necessary database updates
2012-09-12 18:04:44 [INFO] [LWC] Using database: Native
2012-09-12 18:04:44 [INFO] [LWC] Precached 734 protections
2012-09-12 18:04:44 [INFO] [LWC] Enabled plugin support for MobArena
2012-09-12 18:04:44 [INFO] Preparing level "world"
2012-09-12 18:04:44 [INFO] Preparing start region for level 0 (Seed: -7799490795571351819)
2012-09-12 18:04:45 [INFO] Preparing spawn area: 56%
2012-09-12 18:04:46 [INFO] Preparing start region for level 1 (Seed: -7799490795571351819)
2012-09-12 18:04:46 [INFO] Preparing spawn area: 52%
2012-09-12 18:04:47 [INFO] Preparing start region for level 2 (Seed: -7799490795571351819)
2012-09-12 18:04:47 [INFO] Preparing spawn area: 61%
2012-09-12 18:04:48 [INFO] [ColorCarts] Enabling ColorCarts v1.0
2012-09-12 18:04:48 [INFO] [ColorCarts] Enabled.
2012-09-12 18:04:48 [INFO] [MultiInv] Enabling MultiInv v3.1.1
2012-09-12 18:04:48 [INFO] [MultiInv] MC 1.3 or above found, enabling version 2 XP handling.
2012-09-12 18:04:48 [INFO] [GroupManager] Enabling GroupManager v2.0 (2.9.2) (Phoenix)
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'moderator' not found for group SemiAdmin. Ignoring entry in file: plugins\GroupManager\worlds\world\groups.yml
2012-09-12 18:04:48 [INFO] GroupManager - INFO - World Found: cw
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:groupmanager_default' not found for group Default. Ignoring entry in file: plugins\GroupManager\worlds\cw\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:towny_default' not found for group Default. Ignoring entry in file: plugins\GroupManager\worlds\cw\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:groupmanager_moderator' not found for group Moderator. Ignoring entry in file: plugins\GroupManager\worlds\cw\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:vanish_moderator' not found for group Moderator. Ignoring entry in file: plugins\GroupManager\worlds\cw\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:groupmanager_admin' not found for group Admin. Ignoring entry in file: plugins\GroupManager\worlds\cw\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:vanish_admin' not found for group Admin. Ignoring entry in file: plugins\GroupManager\worlds\cw\groups.yml
2012-09-12 18:04:48 [INFO] GroupManager - INFO - World Found: herobrine
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:groupmanager_default' not found for group Default. Ignoring entry in file: plugins\GroupManager\worlds\herobrine\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:towny_default' not found for group Default. Ignoring entry in file: plugins\GroupManager\worlds\herobrine\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:groupmanager_moderator' not found for group Moderator. Ignoring entry in file: plugins\GroupManager\worlds\herobrine\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:vanish_moderator' not found for group Moderator. Ignoring entry in file: plugins\GroupManager\worlds\herobrine\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:groupmanager_admin' not found for group Admin. Ignoring entry in file: plugins\GroupManager\worlds\herobrine\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:vanish_admin' not found for group Admin. Ignoring entry in file: plugins\GroupManager\worlds\herobrine\groups.yml
2012-09-12 18:04:48 [INFO] GroupManager - INFO - World Found: nether
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:groupmanager_default' not found for group Default. Ignoring entry in file: plugins\GroupManager\worlds\nether\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:towny_default' not found for group Default. Ignoring entry in file: plugins\GroupManager\worlds\nether\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:groupmanager_moderator' not found for group Moderator. Ignoring entry in file: plugins\GroupManager\worlds\nether\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:vanish_moderator' not found for group Moderator. Ignoring entry in file: plugins\GroupManager\worlds\nether\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:groupmanager_admin' not found for group Admin. Ignoring entry in file: plugins\GroupManager\worlds\nether\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:vanish_admin' not found for group Admin. Ignoring entry in file: plugins\GroupManager\worlds\nether\groups.yml
2012-09-12 18:04:48 [INFO] GroupManager - INFO - World Found: ressources
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:groupmanager_default' not found for group Default. Ignoring entry in file: plugins\GroupManager\worlds\ressources\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:towny_default' not found for group Default. Ignoring entry in file: plugins\GroupManager\worlds\ressources\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:groupmanager_moderator' not found for group Moderator. Ignoring entry in file: plugins\GroupManager\worlds\ressources\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:vanish_moderator' not found for group Moderator. Ignoring entry in file: plugins\GroupManager\worlds\ressources\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:groupmanager_admin' not found for group Admin. Ignoring entry in file: plugins\GroupManager\worlds\ressources\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:vanish_admin' not found for group Admin. Ignoring entry in file: plugins\GroupManager\worlds\ressources\groups.yml
2012-09-12 18:04:48 [INFO] GroupManager - INFO - World Found: survie
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:groupmanager_default' not found for group Default. Ignoring entry in file: plugins\GroupManager\worlds\survie\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:towny_default' not found for group Default. Ignoring entry in file: plugins\GroupManager\worlds\survie\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:groupmanager_moderator' not found for group Moderator. Ignoring entry in file: plugins\GroupManager\worlds\survie\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:vanish_moderator' not found for group Moderator. Ignoring entry in file: plugins\GroupManager\worlds\survie\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:groupmanager_admin' not found for group Admin. Ignoring entry in file: plugins\GroupManager\worlds\survie\groups.yml
2012-09-12 18:04:48 [SEVERE] GroupManager - WARNING - Inherited group 'g:vanish_admin' not found for group Admin. Ignoring entry in file: plugins\GroupManager\worlds\survie\groups.yml
2012-09-12 18:04:48 [INFO] GroupManager - INFO - World Found: world
2012-09-12 18:04:48 [INFO] GroupManager - INFO - Superperms support enabled.
2012-09-12 18:04:48 [INFO] GroupManager - INFO - Scheduled Data Saving is set for every 10 minutes!
2012-09-12 18:04:48 [INFO] GroupManager - INFO - Backups will be retained for 24 hours!
2012-09-12 18:04:48 [INFO] GroupManager version 2.0 (2.9.2) (Phoenix) is enabled!
2012-09-12 18:04:48 [INFO] [Vault][Permission] GroupManager hooked.
2012-09-12 18:04:48 [INFO] [Vault][Chat] GroupManager - Chat hooked.
2012-09-12 18:04:48 [INFO] [WorldEdit] Enabling WorldEdit v5.3
2012-09-12 18:04:48 [INFO] WEPIF: Using the Bukkit Permissions API.
2012-09-12 18:04:48 [INFO] [DAC] Enabling DAC v1.3.0
2012-09-12 18:04:48 [INFO] [DAC] DAC loaded.
2012-09-12 18:04:48 [INFO] [MarriagePlus] Enabling MarriagePlus v1.0
2012-09-12 18:04:48 [INFO] [MarriagePlus] MarriagePlus has been enabled!
2012-09-12 18:04:48 [INFO] [Multiverse-Core] Enabling Multiverse-Core v2.4-b527
2012-09-12 18:04:48 [INFO] [Multiverse-Core] - Version 2.4-b527 (API v14) Enabled - By Rigby, fernferret, lithium3141 and main--
2012-09-12 18:04:48 [INFO] [AllPay] - Version 10.0 - hooked into iConomy 6 for Multiverse-Core v2.4-b527
2012-09-12 18:04:48 [INFO] [Multiverse-Core] Loading World & Settings - 'world' - Env: NORMAL - Type: NORMAL & seed: -7799490795571351819
2012-09-12 18:04:48 [INFO] [Multiverse-Core] Loading World & Settings - 'world_nether' - Env: NETHER - Type: NORMAL & seed: -7799490795571351819
2012-09-12 18:04:48 [INFO] [Multiverse-Core] Loading World & Settings - 'world_the_end' - Env: THE_END - Type: NORMAL & seed: -7799490795571351819
2012-09-12 18:04:48 [INFO] [Multiverse-Core] Loading World & Settings - 'cr?ative' - Env: NORMAL - Type: NORMAL & seed: -3869711230080922833
2012-09-12 18:04:49 [SEVERE] java.io.FileNotFoundException: .\cr?ative\session.lock (Syntaxe du nom de fichier, de répertoire ou de volume incorrecte)
2012-09-12 18:04:49 [SEVERE]    at java.io.FileOutputStream.open(Native Method)
2012-09-12 18:04:49 [SEVERE]    at java.io.FileOutputStream.<init>(Unknown Source)
2012-09-12 18:04:49 [SEVERE]    at java.io.FileOutputStream.<init>(Unknown Source)
2012-09-12 18:04:49 [SEVERE]    at net.minecraft.server.WorldNBTStorage.h(WorldNBTStorage.java:46)
2012-09-12 18:04:49 [SEVERE]    at net.minecraft.server.WorldNBTStorage.<init>(WorldNBTStorage.java:40)
2012-09-12 18:04:49 [SEVERE]    at net.minecraft.server.ServerNBTManager.<init>(SourceFile:16)
2012-09-12 18:04:49 [SEVERE]    at org.bukkit.craftbukkit.CraftServer.createWorld(CraftServer.java:681)
2012-09-12 18:04:49 [SEVERE]    at org.bukkit.Bukkit.createWorld(Bukkit.java:155)
2012-09-12 18:04:49 [SEVERE]    at org.bukkit.WorldCreator.createWorld(WorldCreator.java:235)
2012-09-12 18:04:49 [SEVERE]    at com.onarandombox.MultiverseCore.utils.WorldManager.addWorld(WorldManager.java:137)
2012-09-12 18:04:49 [SEVERE]    at com.onarandombox.MultiverseCore.utils.WorldManager.addWorld(WorldManager.java:91)
2012-09-12 18:04:49 [SEVERE]    at com.onarandombox.MultiverseCore.utils.WorldManager.loadWorlds(WorldManager.java:557)
2012-09-12 18:04:49 [SEVERE]    at com.onarandombox.MultiverseCore.MultiverseCore.onEnable(MultiverseCore.java:242)
2012-09-12 18:04:49 [SEVERE]    at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:217)
2012-09-12 18:04:49 [SEVERE]    at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:365)
2012-09-12 18:04:49 [SEVERE]    at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:381)
2012-09-12 18:04:49 [SEVERE]    at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:265)
2012-09-12 18:04:49 [SEVERE]    at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:247)
2012-09-12 18:04:49 [SEVERE]    at net.minecraft.server.MinecraftServer.i(MinecraftServer.java:296)
2012-09-12 18:04:49 [SEVERE]    at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:275)
2012-09-12 18:04:49 [SEVERE]    at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:225)
2012-09-12 18:04:49 [SEVERE]    at net.minecraft.server.DedicatedServer.init(DedicatedServer.java:140)
2012-09-12 18:04:49 [SEVERE]    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:380)
2012-09-12 18:04:49 [SEVERE]    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
2012-09-12 18:04:49 [SEVERE] [Multiverse-Core] The world 'cr?ative' could NOT be loaded because it contains errors!
2012-09-12 18:04:49 [SEVERE] [Multiverse-Core] Try using Chukster to repair your world! 'cr?ative'
2012-09-12 18:04:49 [SEVERE] [Multiverse-Core] http://forums.bukkit.org/threads/admin-chunkster.8186/
2012-09-12 18:04:49 [INFO] [Multiverse-Core] Loading World & Settings - 'cw' - Env: NORMAL - Type: NORMAL & seed: -4011753971215998666
2012-09-12 18:04:49 [INFO] Preparing start region for level 3 (Seed: -4011753971215998666)
2012-09-12 18:04:49 [INFO] [Multiverse-Core] Loading World & Settings - 'Herobrine' - Env: NORMAL - Type: NORMAL & seed: -617494443197883138
2012-09-12 18:04:49 [INFO] Preparing start region for level 4 (Seed: -617494443197883138)
2012-09-12 18:04:50 [INFO] [Multiverse-Core] Loading World & Settings - 'survie' - Env: NORMAL - Type: NORMAL & seed: 10528182
2012-09-12 18:04:50 [INFO] Preparing start region for level 5 (Seed: 10528182)
2012-09-12 18:04:51 [INFO] [Multiverse-Core] Loading World & Settings - 'Ressources' - Env: NORMAL - Type: NORMAL & seed: -5721212296715490330
2012-09-12 18:04:51 [INFO] Preparing start region for level 6 (Seed: -5721212296715490330)
2012-09-12 18:04:52 [INFO] [Multiverse-Core] Loading World & Settings - 'Nether' - Env: NETHER - Type: NORMAL & seed: -1002646195473780013
2012-09-12 18:04:52 [INFO] Preparing start region for level 7 (Seed: -1002646195473780013)
2012-09-12 18:04:53 [INFO] Preparing spawn area for Nether, 65%
2012-09-12 18:04:53 [INFO] [Multiverse-Core] 9 - World(s) loaded.
2012-09-12 18:04:53 [INFO] [LWC-Economy] Enabling LWC-Economy v1.3
2012-09-12 18:04:53 [INFO] LWC-Economy: Hooked into LWC!
2012-09-12 18:04:53 [INFO] [HeadBlocks] Enabling HeadBlocks v0.6
2012-09-12 18:04:53 [INFO] [HeadBlocks] Enabling...
2012-09-12 18:04:53 [INFO] [HeadBlocks] Enabled
2012-09-12 18:04:53 [INFO] [WorldGuard] Enabling WorldGuard v5.5.3
2012-09-12 18:04:53 [INFO] [WorldGuard] (world) TNT ignition is PERMITTED.
2012-09-12 18:04:53 [INFO] [WorldGuard] (world) Lighters are PERMITTED.
2012-09-12 18:04:53 [INFO] [WorldGuard] (world) Lava fire is blocked.
2012-09-12 18:04:53 [INFO] [WorldGuard] (world) All fire spread is disabled.
2012-09-12 18:04:53 [INFO] [WorldGuard] Loaded configuration for world 'world'
2012-09-12 18:04:53 [INFO] [WorldGuard] (world_nether) TNT ignition is PERMITTED.
2012-09-12 18:04:53 [INFO] [WorldGuard] (world_nether) Lighters are PERMITTED.
2012-09-12 18:04:53 [INFO] [WorldGuard] (world_nether) Lava fire is blocked.
2012-09-12 18:04:53 [INFO] [WorldGuard] (world_nether) All fire spread is disabled.
2012-09-12 18:04:53 [INFO] [WorldGuard] Loaded configuration for world 'world_nether'
2012-09-12 18:04:53 [INFO] [WorldGuard] (world_the_end) TNT ignition is PERMITTED.
2012-09-12 18:04:53 [INFO] [WorldGuard] (world_the_end) Lighters are PERMITTED.
2012-09-12 18:04:53 [INFO] [WorldGuard] (world_the_end) Lava fire is blocked.
2012-09-12 18:04:53 [INFO] [WorldGuard] (world_the_end) All fire spread is disabled.
2012-09-12 18:04:53 [INFO] [WorldGuard] Loaded configuration for world 'world_the_end'
2012-09-12 18:04:53 [INFO] [WorldGuard] (cw) TNT ignition is PERMITTED.
2012-09-12 18:04:53 [INFO] [WorldGuard] (cw) Lighters are PERMITTED.
2012-09-12 18:04:53 [INFO] [WorldGuard] (cw) Lava fire is blocked.
2012-09-12 18:04:53 [INFO] [WorldGuard] (cw) All fire spread is disabled.
2012-09-12 18:04:53 [INFO] [WorldGuard] Loaded configuration for world 'cw'
2012-09-12 18:04:53 [INFO] [WorldGuard] (Herobrine) TNT ignition is PERMITTED.
2012-09-12 18:04:53 [INFO] [WorldGuard] (Herobrine) Lighters are PERMITTED.
2012-09-12 18:04:53 [INFO] [WorldGuard] (Herobrine) Lava fire is blocked.
2012-09-12 18:04:53 [INFO] [WorldGuard] (Herobrine) All fire spread is disabled.
2012-09-12 18:04:53 [INFO] [WorldGuard] Loaded configuration for world 'Herobrine'
2012-09-12 18:04:53 [INFO] [WorldGuard] (survie) TNT ignition is PERMITTED.
2012-09-12 18:04:53 [INFO] [WorldGuard] (survie) Lighters are PERMITTED.
2012-09-12 18:04:53 [INFO] [WorldGuard] (survie) Lava fire is blocked.
2012-09-12 18:04:53 [INFO] [WorldGuard] (survie) All fire spread is disabled.
2012-09-12 18:04:53 [INFO] [WorldGuard] Loaded configuration for world 'survie'
2012-09-12 18:04:53 [INFO] [WorldGuard] (Ressources) TNT ignition is PERMITTED.
2012-09-12 18:04:53 [INFO] [WorldGuard] (Ressources) Lighters are PERMITTED.
2012-09-12 18:04:53 [INFO] [WorldGuard] (Ressources) Lava fire is blocked.
2012-09-12 18:04:53 [INFO] [WorldGuard] (Ressources) All fire spread is disabled.
2012-09-12 18:04:53 [INFO] [WorldGuard] Loaded configuration for world 'Ressources'
2012-09-12 18:04:53 [INFO] [WorldGuard] (Nether) TNT ignition is PERMITTED.
2012-09-12 18:04:53 [INFO] [WorldGuard] (Nether) Lighters are PERMITTED.
2012-09-12 18:04:53 [INFO] [WorldGuard] (Nether) Lava fire is blocked.
2012-09-12 18:04:53 [INFO] [WorldGuard] (Nether) All fire spread is disabled.
2012-09-12 18:04:53 [INFO] [WorldGuard] Loaded configuration for world 'Nether'
2012-09-12 18:04:53 [INFO] [WorldGuard] 0 regions loaded for 'world'
2012-09-12 18:04:53 [INFO] [WorldGuard] 0 regions loaded for 'world_nether'
2012-09-12 18:04:53 [INFO] [WorldGuard] 0 regions loaded for 'world_the_end'
2012-09-12 18:04:53 [INFO] [WorldGuard] 0 regions loaded for 'cw'
2012-09-12 18:04:53 [INFO] [WorldGuard] 0 regions loaded for 'Herobrine'
2012-09-12 18:04:53 [INFO] [WorldGuard] 0 regions loaded for 'survie'
2012-09-12 18:04:53 [INFO] [WorldGuard] 0 regions loaded for 'Ressources'
2012-09-12 18:04:53 [INFO] [WorldGuard] 0 regions loaded for 'Nether'
2012-09-12 18:04:53 [INFO] [AntiCreeper3] Enabling AntiCreeper3 v3.6.2
2012-09-12 18:04:53 [INFO] [AntiCreeper3] brought to you by Filbert66 (<=v.2.5 by Rothens)
2012-09-12 18:04:53 [INFO] [AutoMessage] Enabling AutoMessage v1.5
2012-09-12 18:04:53 [INFO] [AutoMessage] version [1.5] loaded
2012-09-12 18:04:53 [INFO] [iConomy] Enabling iConomy v6.0.9b
2012-09-12 18:04:53 [INFO] [iConomy - Celty] Enabled (22 ms)
2012-09-12 18:04:53 [INFO] [Vault][Economy] iConomy 6 hooked.
2012-09-12 18:04:54 [INFO] [GenOre] Enabling GenOre v1.0.0
2012-09-12 18:04:54 [INFO] [iConomy - Celty] Purged accounts with default balance.
2012-09-12 18:04:54 [INFO] [CoreProtect] Enabling CoreProtect v1.53
2012-09-12 18:04:54 [INFO] CoreProtect version 1.53 is enabled!
2012-09-12 18:04:54 [INFO] [CoreProtect] Using file based data storage.
2012-09-12 18:04:54 [INFO] [BleedingMobs] Enabling BleedingMobs v3.6d
2012-09-12 18:04:55 [INFO] [Modifyworld] Enabling Modifyworld v1.19.3
2012-09-12 18:04:55 [INFO] [Modifyworld] Modifyworld enabled!
2012-09-12 18:04:55 [INFO] [MobArena] Enabling MobArena v0.94.4.80
2012-09-12 18:04:55 [INFO] [MobArena] v0.94.4.80 enabled.
2012-09-12 18:04:55 [INFO] [MobDisguise] Enabling MobDisguise v1.81
2012-09-12 18:04:55 [INFO] [MobDisguise] by desmin88 version 1.81 enabled.
2012-09-12 18:04:55 [INFO] [PetCreeper] Enabling PetCreeper v1.2.0
2012-09-12 18:04:55 [INFO] [PetCreeper] Configuration loaded.
2012-09-12 18:04:55 [INFO] Found pets.json. Attempting to load pets.
2012-09-12 18:04:55 [INFO] PetCreeper main loop running. [1000]
2012-09-12 18:04:55 [INFO] [Essentials] Enabling Essentials v2.9.2
2012-09-12 18:04:55 [WARNING] Version mismatch! Please update EssentialsProtect to the same version.
2012-09-12 18:04:55 [INFO] [Vault][Economy] Essentials Economy hooked.
2012-09-12 18:04:55 [INFO] Essentials: Using GroupManager based permissions.
2012-09-12 18:04:55 [INFO] [Essentials] Payment method found (Vault - Economy: iConomy 6 version: 1.2.17-b224)
2012-09-12 18:04:55 [INFO] [Jobs] Enabling Jobs v2.8.5
2012-09-12 18:04:56 [INFO] [Jobs] Started database save task
2012-09-12 18:04:56 [INFO] [Jobs] [Jobs] Successfully linked with Vault.
2012-09-12 18:04:56 [INFO] [Jobs] Database save task shutdown
2012-09-12 18:04:56 [INFO] [Jobs] Started database save task
2012-09-12 18:04:56 [INFO] [Jobs] Plugin has been enabled succesfully.
2012-09-12 18:04:56 [INFO] [Jobs] Login manager started
2012-09-12 18:04:56 [INFO] [EssentialsProtect] Enabling EssentialsProtect v2.9.1
2012-09-12 18:04:56 [WARNING] Version mismatch! Please update all Essentials jars to the same version.
2012-09-12 18:04:56 [INFO] Initializing c3p0-0.9.1.2 [built 21-May-2007 15:04:56; debug? true; trace: 10]
2012-09-12 18:04:56 [INFO] [EssentialsSpawn] Enabling EssentialsSpawn v2.9.2
2012-09-12 18:04:56 [INFO] [CreativeGates] Enabling CreativeGates v1.3.5
2012-09-12 18:04:56 [INFO] [CreativeGates v1.3.5] === ENABLE START ===
2012-09-12 18:04:56 [INFO] [CreativeGates v1.3.5] === ENABLE DONE (Took 221ms) ===
2012-09-12 18:04:56 [INFO] [VanishNoPacket] Enabling VanishNoPacket v3.12
2012-09-12 18:04:56 [INFO] [VanishNoPacket] Colored nametags enabled, but I couldn't find TagAPI
2012-09-12 18:04:56 [INFO] [VanishNoPacket] For awesome colored nametags on vanish, visit
2012-09-12 18:04:56 [INFO] [VanishNoPacket] http://dev.bukkit.org/server-mods/tag/
2012-09-12 18:04:56 [INFO] [VanishNoPacket] and download TagAPI.jar
2012-09-12 18:04:56 [INFO] [VanishNoPacket] v3.12 loaded.
2012-09-12 18:04:56 [INFO] [EssentialsChat] Enabling EssentialsChat v2.9.2
2012-09-12 18:04:56 [INFO] [Factions] Enabling Factions v1.6.9
2012-09-12 18:04:56 [INFO] [Factions v1.6.9] === ENABLE START ===
2012-09-12 18:04:57 [INFO] [Factions v1.6.9] Loading board from disk
2012-09-12 18:04:57 [SEVERE] java.lang.NullPointerException
2012-09-12 18:04:57 [SEVERE]    at com.massivecraft.factions.Board.loadFromSaveFormat(Board.java:323)
2012-09-12 18:04:57 [SEVERE]    at com.massivecraft.factions.Board.load(Board.java:370)
2012-09-12 18:04:57 [SEVERE]    at com.massivecraft.factions.P.onEnable(P.java:89)
2012-09-12 18:04:57 [SEVERE]    at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:217)
2012-09-12 18:04:57 [SEVERE]    at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:365)
2012-09-12 18:04:57 [SEVERE]    at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:381)
2012-09-12 18:04:57 [SEVERE]    at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:265)
2012-09-12 18:04:57 [SEVERE]    at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:247)
2012-09-12 18:04:57 [SEVERE]    at net.minecraft.server.MinecraftServer.i(MinecraftServer.java:296)
2012-09-12 18:04:57 [SEVERE]    at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:275)
2012-09-12 18:04:57 [SEVERE]    at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:225)
2012-09-12 18:04:57 [SEVERE]    at net.minecraft.server.DedicatedServer.init(DedicatedServer.java:140)
2012-09-12 18:04:57 [SEVERE]    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:380)
2012-09-12 18:04:57 [SEVERE]    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
2012-09-12 18:04:57 [INFO] [Factions v1.6.9] Failed to load the board from disk.
2012-09-12 18:04:57 [INFO] [Factions v1.6.9] Found and will integrate chat with EssentialsChat v2.9.2
2012-09-12 18:04:57 [INFO] [Factions v1.6.9] Economy integration through Vault plugin successful.
2012-09-12 18:04:57 [INFO] [Factions v1.6.9] NOTE: Economy is disabled. You can enable it with the command: f config econEnabled true
2012-09-12 18:04:57 [INFO] [Factions v1.6.9] Successfully hooked into LWC! Integration is currently disabled, though ("lwcIntegration").
2012-09-12 18:04:57 [INFO] [Factions v1.6.9] === ENABLE DONE (Took 327ms) ===
2012-09-12 18:04:57 [INFO] [PvPBounty] Enabling PvPBounty v2.0
2012-09-12 18:04:57 [INFO] [PvPBounty] PvPBounty has been enabled
2012-09-12 18:04:57 [INFO] Server permissions file permissions.yml is empty, ignoring it
2012-09-12 18:04:57 [INFO] --------------------
2012-09-12 18:04:57 [INFO] [CoreProtect] Version 1.54 now available.
2012-09-12 18:04:57 [INFO] [CoreProtect] Download at http://coreprotect.net
2012-09-12 18:04:57 [INFO] [CoreProtect] Enjoy CoreProtect? Leave a comment on the thread!
2012-09-12 18:04:57 [INFO] --------------------
2012-09-12 18:04:57 [INFO] Done (12.897s)! For help, type "help" or "?"
2012-09-12 18:04:57 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 31 more
2012-09-12 18:04:57 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 31 more
2012-09-12 18:04:57 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 31 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 31 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 31 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 31 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 31 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 31 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
 
Voilà la 2 ème partie du code, désolé du double post.
On n'en est même pas à la moitié.
Code:
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event ProjectileHitEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.EntityProjectile.h_(EntityProjectile.java:159)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.onProjectileHitEvent(PetEntityListener.java:88)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 13 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event ProjectileHitEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.EntityProjectile.h_(EntityProjectile.java:159)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.onProjectileHitEvent(PetEntityListener.java:88)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 13 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:01 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:01 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
 
Voilà la 2 ème partie du code, désolé du double post.
On n'en est même pas à la moitié.
Code:
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event ProjectileHitEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.EntityProjectile.h_(EntityProjectile.java:159)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.onProjectileHitEvent(PetEntityListener.java:88)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 13 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event ProjectileHitEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.EntityProjectile.h_(EntityProjectile.java:159)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.onProjectileHitEvent(PetEntityListener.java:88)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 13 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:01 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:01 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
 
Voilà la 2 ème partie du code, désolé du double post.
On n'en est même pas à la moitié.
Code:
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event ProjectileHitEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.EntityProjectile.h_(EntityProjectile.java:159)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.onProjectileHitEvent(PetEntityListener.java:88)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 13 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event ProjectileHitEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.EntityProjectile.h_(EntityProjectile.java:159)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.onProjectileHitEvent(PetEntityListener.java:88)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 13 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:01 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:01 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
 
Voilà la 2 ème partie du code, désolé du double post.
On n'en est même pas à la moitié.
Code:
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event ProjectileHitEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.EntityProjectile.h_(EntityProjectile.java:159)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.onProjectileHitEvent(PetEntityListener.java:88)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 13 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event ProjectileHitEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.EntityProjectile.h_(EntityProjectile.java:159)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.onProjectileHitEvent(PetEntityListener.java:88)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 13 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:01 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:01 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
 
Voilà la 2 ème partie du code, désolé du double post.
On n'en est même pas à la moitié.
Code:
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:58 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event ProjectileHitEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.EntityProjectile.h_(EntityProjectile.java:159)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.onProjectileHitEvent(PetEntityListener.java:88)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 13 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event ProjectileHitEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.EntityProjectile.h_(EntityProjectile.java:159)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.onProjectileHitEvent(PetEntityListener.java:88)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 13 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:04:59 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:00 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:01 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at net.minecraft.server.EntityTNTPrimed.explode(EntityTNTPrimed.java:81)
    at net.minecraft.server.EntityTNTPrimed.h_(EntityTNTPrimed.java:61)
    at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
    at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
    at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
    at net.minecraft.server.World.tickEntities(World.java:1119)
    at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
    at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
    at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
    at java.util.concurrent.ConcurrentHashMap.containsKey(Unknown Source)
    at me.cnaude.plugin.PetCreeper.PetMain.isPet(PetMain.java:547)
    at me.cnaude.plugin.PetCreeper.PetEntityListener.stopDragonDamage(PetEntityListener.java:80)
    at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
    ... 30 more
2012-09-12 18:05:01 [SEVERE] Could not pass event EntityExplodeEvent to PetCreeper
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
    at net.minecraft.server.Explosion.a(Explosion.java:203)
    at net.minecraft.server.World.createExplosion(World.java:1517)
    at net.minecraft.server.WorldServer.createExplosion(WorldServer.java:732)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:452)
    at org.bukkit.craftbukkit.CraftWorld.createExplosion(CraftWorld.java:460)
    at net.anticreeper.AnticreeperEntityListener.onEntityExplode(AnticreeperEntityListener.java:142)
    at sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)