2011-08-21 17:06:23 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'changepw' in plugin xAuth v2.0b4.1
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:37)
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:129)
    at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:352)
    at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:737)
    at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:701)
    at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:694)
    at net.minecraft.server.Packet3Chat.a(Packet3Chat.java:33)
    at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
    at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:89)
    at net.minecraft.server.NetworkListenThread.a(SourceFile:105)
    at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:453)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:363)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)
Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
    at com.cypherx.xauth.Util.argsToString(Util.java:240)
    at com.cypherx.xauth.Util.fixArgs(Util.java:249)
    at com.cypherx.xauth.commands.ChangePasswordCommand.onCommand(ChangePasswordCommand.java:24)
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:35)
    ... 12 more