2014-03-14 00:35:38 [INFO] [STDERR] java.util.ConcurrentModificationException
2014-03-14 00:35:38 [INFO] [STDERR]     at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
2014-03-14 00:35:38 [INFO] [STDERR]     at java.util.HashMap$ValueIterator.next(Unknown Source)
2014-03-14 00:35:38 [INFO] [STDERR]     at net.minecraft.nbt.NBTTagCompound.func_74734_a(SourceFile:
25)
2014-03-14 00:35:38 [INFO] [STDERR]     at net.minecraft.nbt.NBTBase.func_74731_a(SourceFile:119)
2014-03-14 00:35:38 [INFO] [STDERR]     at net.minecraft.nbt.NBTTagCompound.func_74734_a(SourceFile:
26)
2014-03-14 00:35:38 [INFO] [STDERR]     at net.minecraft.nbt.NBTBase.func_74731_a(SourceFile:119)
2014-03-14 00:35:38 [INFO] [STDERR]     at net.minecraft.nbt.NBTTagCompound.func_74734_a(SourceFile:
26)
2014-03-14 00:35:38 [INFO] [STDERR]     at net.minecraft.nbt.NBTTagList.func_74734_a(NBTTagList.java
:49)
2014-03-14 00:35:38 [INFO] [STDERR]     at net.minecraft.nbt.NBTBase.func_74731_a(SourceFile:119)
2014-03-14 00:35:38 [INFO] [STDERR]     at net.minecraft.nbt.NBTTagCompound.func_74734_a(SourceFile:
26)
2014-03-14 00:35:38 [INFO] [STDERR]     at net.minecraft.nbt.NBTBase.func_74731_a(SourceFile:119)
2014-03-14 00:35:38 [INFO] [STDERR]     at net.minecraft.nbt.NBTTagCompound.func_74734_a(SourceFile:
26)
2014-03-14 00:35:38 [INFO] [STDERR]     at net.minecraft.nbt.NBTBase.func_74731_a(SourceFile:119)
2014-03-14 00:35:38 [INFO] [STDERR]     at net.minecraft.nbt.CompressedStreamTools.func_74800_a(Comp
ressedStreamTools.java:140)
2014-03-14 00:35:38 [INFO] [STDERR]     at net.minecraft.world.chunk.storage.AnvilChunkLoader.func_7
5821_a(AnvilChunkLoader.java:198)
2014-03-14 00:35:38 [INFO] [STDERR]     at net.minecraft.world.chunk.storage.AnvilChunkLoader.func_7
5814_c(AnvilChunkLoader.java:184)
2014-03-14 00:35:38 [INFO] [STDERR]     at net.minecraft.world.storage.ThreadedFileIOBase.func_75736
_b(SourceFile:30)
2014-03-14 00:35:38 [INFO] [STDERR]     at net.minecraft.world.storage.ThreadedFileIOBase.run(Source
File:23)
2014-03-14 00:35:38 [INFO] [STDERR]     at java.lang.Thread.run(Unknown Source)