WORLDGUARD-2617 - Reported by Scott.Spittle

[SEVERE] Could not pass event EntityDamageByEntityEvent to WorldGuard v5.7.2
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427)
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
at org.bukkit.craftbukkit.v1_5_R1.event.CraftEventFactory.callEvent(CraftEventFactory.java:81)
at org.bukkit.craftbukkit.v1_5_R1.event.CraftEventFactory.callEntityDamageEvent(CraftEventFactory.java:369)
at org.bukkit.craftbukkit.v1_5_R1.event.CraftEventFactory.handleEntityDamageEvent(CraftEventFactory.java:391)
at net.minecraft.server.v1_5_R1.EntityLiving.damageEntity(EntityLiving.java:693)
at net.minecraft.server.v1_5_R1.EntityHuman.damageEntity(EntityHuman.java:683)
at net.minecraft.server.v1_5_R1.EntityPlayer.damageEntity(EntityPlayer.java:349)
at net.minecraft.server.v1_5_R1.EntityHuman.attack(EntityHuman.java:854)
at net.minecraft.server.v1_5_R1.PlayerConnection.a(PlayerConnection.java:1103)
at net.minecraft.server.v1_5_R1.Packet7UseEntity.handle(SourceFile:36)
at net.minecraft.server.v1_5_R1.NetworkManager.b(NetworkManager.java:292)
at net.minecraft.server.v1_5_R1.PlayerConnection.d(PlayerConnection.java:113)
at net.minecraft.server.v1_5_R1.ServerConnection.b(SourceFile:35)
at net.minecraft.server.v1_5_R1.DedicatedServerConnection.b(SourceFile:30)
at net.minecraft.server.v1_5_R1.MinecraftServer.r(MinecraftServer.java:580)
at net.minecraft.server.v1_5_R1.DedicatedServer.r(DedicatedServer.java:225)
at net.minecraft.server.v1_5_R1.MinecraftServer.q(MinecraftServer.java:476)
at net.minecraft.server.v1_5_R1.MinecraftServer.run(MinecraftServer.java:409)
at net.minecraft.server.v1_5_R1.ThreadServerApplication.run(SourceFile:573)
Caused by: java.lang.NoClassDefFoundError: org/bukkit/entity/MinecartTNT
at com.sk89q.worldguard.bukkit.WorldGuardEntityListener.onEntityDamageByEntity(WorldGuardEntityListener.java:277)
at com.sk89q.worldguard.bukkit.WorldGuardEntityListener.onEntityDamage(WorldGuardEntityListener.java:432)
at sun.reflect.GeneratedMethodAccessor37.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
... 21 more
Caused by: java.lang.ClassNotFoundException: org.bukkit.entity.MinecartTNT
at org.bukkit.plugin.java.PluginClassLoader.findClass0(PluginClassLoader.java:70)
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:53)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 27 more

Comment by Andoitz.Jordán.Marmolejo

I have the same error every second. Worldguard works good but the error make lagg in the server ;)

Comment by Michu189PL

And next error:

2013-03-16 16:02:20 [SEVERE] Could not pass event EntityDamageByEntityEvent to WorldGuard v5.7.2
org.bukkit.event.EventException

  at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427)
  at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
  at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:39)
  at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:479)
  at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:464)
  at org.bukkit.craftbukkit.v1_5_R1.event.CraftEventFactory.callEvent(CraftEventFactory.java:81)
  at org.bukkit.craftbukkit.v1_5_R1.event.CraftEventFactory.callEntityDamageEvent(CraftEventFactory.java:369)
  at org.bukkit.craftbukkit.v1_5_R1.event.CraftEventFactory.handleEntityDamageEvent(CraftEventFactory.java:391)
  at net.minecraft.server.v1_5_R1.EntityLiving.damageEntity(EntityLiving.java:697)
  at net.minecraft.server.v1_5_R1.EntityHuman.damageEntity(EntityHuman.java:685)
  at net.minecraft.server.v1_5_R1.EntityPlayer.damageEntity(EntityPlayer.java:351)
  at net.minecraft.server.v1_5_R1.EntityHuman.attack(EntityHuman.java:856)
  at net.minecraft.server.v1_5_R1.PlayerConnection.a(PlayerConnection.java:1119)
  at net.minecraft.server.v1_5_R1.Packet7UseEntity.handle(SourceFile:36)
  at org.spigotmc.netty.NettyNetworkManager.b(NettyNetworkManager.java:174)
  at net.minecraft.server.v1_5_R1.PlayerConnection.d(PlayerConnection.java:113)
  at net.minecraft.server.v1_5_R1.ServerConnection.b(SourceFile:35)
  at org.spigotmc.netty.NettyServerConnection.b(NettyServerConnection.java:66)
  at net.minecraft.server.v1_5_R1.MinecraftServer.r(MinecraftServer.java:582)
  at net.minecraft.server.v1_5_R1.DedicatedServer.r(DedicatedServer.java:229)
  at net.minecraft.server.v1_5_R1.MinecraftServer.q(MinecraftServer.java:471)
  at net.minecraft.server.v1_5_R1.MinecraftServer.run(MinecraftServer.java:403)
  at net.minecraft.server.v1_5_R1.ThreadServerApplication.run(SourceFile:573)

Caused by: java.lang.NoClassDefFoundError: org/bukkit/entity/MinecartTNT

  at com.sk89q.worldguard.bukkit.WorldGuardEntityListener.onEntityDamageByEntity(WorldGuardEntityListener.java:277)
  at com.sk89q.worldguard.bukkit.WorldGuardEntityListener.onEntityDamage(WorldGuardEntityListener.java:432)
  at sun.reflect.GeneratedMethodAccessor52.invoke(Unknown Source)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:601)
  at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
  ... 22 more

Comment by Steven.Smith

This problem was supposedly fixed, but the problem persists with the most recent build at time of writing (#830). I'm using Spigot, maybe that's causing a problem.

Stacktrace: http://pastebin.com/ca8nYEPz

wg version
10:12:06 [INFO] WorldGuard 5.7.2
10:12:06 [INFO] http://www.sk89q.com
version
10:12:10 [INFO] This server is running CraftBukkit version git-Spigot-751 (MC: 1.5.1) (Implementing API version 1.5.1-R0.1-SNAPSHOT)