2013-11-15 03:24:59 [WARNING] Could not properly handle event CHUNK_LOAD:
java.lang.IllegalAccessError: Synchronized code got accessed from another thread: java.util.concurrent.ThreadPoolExecutor$Worker
	at org.bukkit.event.NLTCListener.onChunkLoad(NLTCListener:0)
	at sun.reflect.GeneratedMethodAccessor59.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
	at net.minecraft.server.v1_6_R3.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:138)
	at com.bergerkiller.bukkit.common.internal.ChunkProviderServerHook.getChunkAt(ChunkProviderServerHook.java:122)
	at net.minecraft.server.v1_6_R3.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:84)
	at org.bukkit.craftbukkit.v1_6_R3.CraftWorld.getChunkAt(CraftWorld.java:118)
	at org.bukkit.craftbukkit.v1_6_R3.CraftWorld.getBlockAt(CraftWorld.java:82)
	at org.bukkit.craftbukkit.v1_6_R3.block.CraftBlock.getRelative(CraftBlock.java:161)
	at org.bukkit.craftbukkit.v1_6_R3.block.CraftBlock.getRelative(CraftBlock.java:169)
	at org.bukkit.craftbukkit.v1_6_R3.block.CraftBlock.getRelative(CraftBlock.java:165)
	at eu.sylian.conditions.WorldSnapshot.addBlock(WorldSnapshot.java:84)
	at eu.sylian.spawns.WorldHandler.startAsync(WorldHandler.java:172)
	at eu.sylian.spawns.WorldHandler.access$100(WorldHandler.java:31)
	at eu.sylian.spawns.WorldHandler$3.run(WorldHandler.java:383)
	at org.bukkit.craftbukkit.v1_6_R3.scheduler.CraftTask.run(CraftTask.java:53)
	at org.bukkit.craftbukkit.v1_6_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
2013-11-15 03:24:59 [INFO] This error is logged only once: it could have occurred multiple times by now.
2013-11-15 03:24:59 [INFO] Potential failures may occur in other plugins handling this Event.
2013-11-15 03:24:59 [INFO] Please contact one of the authors of plugin 'spawns': coldandtired
2013-11-15 03:25:00 [SEVERE] java.util.ConcurrentModificationException
2013-11-15 03:25:00 [SEVERE] 	at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
2013-11-15 03:25:00 [SEVERE] 	at java.util.HashMap$KeyIterator.next(Unknown Source)
2013-11-15 03:25:00 [SEVERE] 	at net.minecraft.server.v1_6_R3.EntityTracker.updatePlayers(EntityTracker.java:149)
2013-11-15 03:25:00 [SEVERE] 	at net.minecraft.server.v1_6_R3.MinecraftServer.t(MinecraftServer.java:583)
2013-11-15 03:25:00 [SEVERE] 	at net.minecraft.server.v1_6_R3.DedicatedServer.t(DedicatedServer.java:227)
2013-11-15 03:25:00 [SEVERE] 	at net.minecraft.server.v1_6_R3.MinecraftServer.s(MinecraftServer.java:488)
2013-11-15 03:25:00 [SEVERE] 	at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java:421)
2013-11-15 03:25:00 [SEVERE] 	at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:583)
2013-11-15 03:25:00 [SEVERE] Encountered an unexpected exception ConcurrentModificationException
java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
	at java.util.HashMap$KeyIterator.next(Unknown Source)
	at net.minecraft.server.v1_6_R3.EntityTracker.updatePlayers(EntityTracker.java:149)
	at net.minecraft.server.v1_6_R3.MinecraftServer.t(MinecraftServer.java:583)
	at net.minecraft.server.v1_6_R3.DedicatedServer.t(DedicatedServer.java:227)
	at net.minecraft.server.v1_6_R3.MinecraftServer.s(MinecraftServer.java:488)
	at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java:421)
	at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:583)
2013-11-15 03:25:00 [SEVERE] This crash report has been saved to: A:\Minecraft\.\crash-reports\crash-2013-11-15_03.25.00-server.txt
2013-11-15 03:25:15 [WARNING] [Server] The main thread failed to respond after 10 seconds
2013-11-15 03:25:15 [WARNING] [Server] What follows is the stack trace of the main thread
2013-11-15 03:25:15 [WARNING] [Server]     at java.lang.Thread.sleep(Native Method)
2013-11-15 03:25:15 [WARNING] [Server]     at net.minecraft.server.v1_6_R3.DedicatedServer.a(DedicatedServer.java:208)
2013-11-15 03:25:15 [WARNING] [Server]     at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java:449)
2013-11-15 03:25:15 [WARNING] [Server]     at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:583)
2013-11-15 03:25:27 [WARNING] [Server] The main thread is still stuck, current loop line is:
2013-11-15 03:25:27 [WARNING] [Server]     at net.minecraft.server.v1_6_R3.DedicatedServer.a(DedicatedServer.java:208)
2013-11-15 03:26:05 [INFO] CONSOLE: Stopping the server..
2013-11-15 03:26:05 [INFO] Stopping server