Hi everyone.. I have this problem with the server.. Few time a day this error appears and the server stop work: Can anyone help me to solve it?? (Sorry for my bad english :/)
For reference: Code: 2012-04-11 16:12:37 [SEVERE] java.util.ConcurrentModificationException 2012-04-11 16:12:37 [SEVERE]at java.util.HashMap$HashIterator.nextEntry(Unknown Source) 2012-04-11 16:12:37 [SEVERE]at java.util.HashMap$KeyIterator.next(Unknown Source) 2012-04-11 16:12:37 [SEVERE]at net.minecraft.server.World.a(World.java:2428) 2012-04-11 16:12:37 [SEVERE]at net.minecraft.server.ChunkRegionLoader.a(ChunkRegionLoader.java:215) 2012-04-11 16:12:37 [SEVERE]at net.minecraft.server.ChunkRegionLoader.a(ChunkRegionLoader.java:85) 2012-04-11 16:12:37 [SEVERE]at net.minecraft.server.ChunkProviderServer.saveChunk(ChunkProviderServer.java:163) 2012-04-11 16:12:37 [SEVERE]at net.minecraft.server.ChunkProviderServer.unloadChunks(ChunkProviderServer.java:247) 2012-04-11 16:12:37 [SEVERE]at net.minecraft.server.World.doTick(World.java:1742) 2012-04-11 16:12:37 [SEVERE]at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:538) 2012-04-11 16:12:37 [SEVERE]at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449) 2012-04-11 16:12:37 [SEVERE]at net.minecraft.server.ThreadServerApplication.run(SourceFile:492) Code: 2012-04-11 21:25:40 [SEVERE] java.util.ConcurrentModificationException 2012-04-11 21:25:40 [SEVERE]at java.util.AbstractList$Itr.checkForComodification(Unknown Source) 2012-04-11 21:25:40 [SEVERE]at java.util.AbstractList$Itr.next(Unknown Source) 2012-04-11 21:25:40 [SEVERE]at java.util.AbstractCollection.removeAll(Unknown Source) 2012-04-11 21:25:40 [SEVERE]at net.minecraft.server.World.tickEntities(World.java:1196) 2012-04-11 21:25:40 [SEVERE]at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:542) 2012-04-11 21:25:40 [SEVERE]at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449) 2012-04-11 21:25:40 [SEVERE]at net.minecraft.server.ThreadServerApplication.run(SourceFile:492) 2012-04-11 21:25:40 [SEVERE] Unexpected exception java.util.ConcurrentModificationException at java.util.AbstractList$Itr.checkForComodification(Unknown Source) at java.util.AbstractList$Itr.next(Unknown Source) at java.util.AbstractCollection.removeAll(Unknown Source) at net.minecraft.server.World.tickEntities(World.java:1196) at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:542) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:449) at net.minecraft.server.ThreadServerApplication.run(SourceFile:492) 2012-04-11 21:26:48 [INFO] Connection reset 2012-04-11 21:26:50 [INFO] Read timed out 2012-04-11 21:27:00 [INFO] Connection reset 2012-04-11 21:27:05 [INFO] Read timed out 2012-04-11 21:27:20 [INFO] Connection reset 2012-04-11 21:27:41 [INFO] Read timed out 2012-04-11 21:27:41 [INFO] Connection reset 2012-04-11 21:27:56 [INFO] Connection reset 2012-04-11 21:28:03 [INFO] Read timed out 2012-04-11 21:28:17 [INFO] Read timed out 2012-04-11 21:28:31 [INFO] Read timed out This is not a bukkit error, but it may be caused by a plugin using native vanilla methods (which would be unusual). Are all your plugins up to date? I can't see any log entries from plugins telling you to update them.
As I said, it doesn't seem to be caused by Bukkit or a plugin as there is no reference to bukkit or plugins in the stack trace. My suspicion is that it is caused by vanilla minecraft - something we can't fix. You should contact Jeb_ on Twitter.
Since your issue in the Bukkit Help forum is resolved, please change the prefix of your topic title to Solved by going to Thread Tools then 'Edit Thread'