2012-10-08 18:36:23 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'rx' in plugin RateOfXray v1.0.9
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:42)
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:168)
	at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:498)
	at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:880)
	at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:826)
	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:808)
	at net.minecraft.server.Packet3Chat.handle(Packet3Chat.java:44)
	at net.minecraft.server.NetworkManager.b(NetworkManager.java:282)
	at net.minecraft.server.NetServerHandler.d(NetServerHandler.java:109)
	at net.minecraft.server.ServerConnection.b(SourceFile:35)
	at net.minecraft.server.DedicatedServerConnection.b(SourceFile:30)
	at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:577)
	at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:213)
	at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:473)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:405)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.IllegalArgumentException: Comparison method violates its general contract!
	at java.util.ComparableTimSort.mergeHi(ComparableTimSort.java:835)
	at java.util.ComparableTimSort.mergeAt(ComparableTimSort.java:453)
	at java.util.ComparableTimSort.mergeCollapse(ComparableTimSort.java:376)
	at java.util.ComparableTimSort.sort(ComparableTimSort.java:182)
	at java.util.ComparableTimSort.sort(ComparableTimSort.java:146)
	at java.util.Arrays.sort(Arrays.java:472)
	at java.util.Collections.sort(Collections.java:155)
	at de.quurks.rateofxray.XrayCommandExecutor$6.handle(XrayCommandExecutor.java:109)
	at de.quurks.base.command.Executor.onCommand(Executor.java:48)
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:40)
	... 15 more