at net.minecraft.server.ServerConfigurationManager.f(ServerConfigurationManager.java:317)
	at net.minecraft.server.EntityPlayer.b(EntityPlayer.java:278)
	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:305)
	at net.minecraft.server.Packet10Flying.a(SourceFile:126)
	at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:92)
	at net.minecraft.server.NetworkListenThread.a(SourceFile:108)
	at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:464)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:374)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:417)