Crash - Exception in server tick loop

Hi

A server of mine keeps crashing. We've tried using the recommended beta build but also the latest dev build. When the server crashes, a crash report looking like this i saved:

Code:

---- Minecraft Crash Report ----
// You should try our sister game, Minceraft!
 
Time: 12/01/14 11:41
Description: Exception in server tick loop
 
java.util.ConcurrentModificationException
    at java.util.HashMap$HashIterator.nextEntry(HashMap.java:894)
    at java.util.HashMap$KeyIterator.next(HashMap.java:928)
    at net.minecraft.server.v1_7_R1.EntityTracker.updatePlayers(EntityTracker.java:152)
    at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:646)
    at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:250)
    at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:545)
    at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:457)
    at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617)
 
 
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
 
-- System Details --
Details:
    Minecraft Version: 1.7.2
    Operating System: Linux (amd64) version 3.10.23-xxxx-std-ipv6-64
    Java Version: 1.7.0_25, Oracle Corporation
    Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 2562099296 bytes (2443 MB) / 6322913280 bytes (6030 MB) up to 6322913280 bytes (6030 MB)
    JVM Flags: 2 total; -Xmx6144M -Xms6144M
    AABB Pool Size: 7362 (412272 bytes; 0 MB) allocated, 3687 (206472 bytes; 0 MB) used
    IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
    CraftBukkit Information:
  Running: CraftBukkit version git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2982jnks (MC: 1.7.2) (Implementing API version 1.7.2-R0.3-SNAPSHOT) true
  Plugins: { GroupManager v2.0 (2.12.1) (Phoenix) org.anjocaido.groupmanager.GroupManager [AnjoCaido, Gabriel Couto, ElgarL], WorldEdit v5.5.8 com.sk89q.worldedit.bukkit.WorldEditPlugin [], Buycraft v6.5 net.buycraft.Plugin [Tebex Technologies Ltd], RankSigns v0.7.1 me.bballheat.ranksigns.Main [], mcore v7.0.1 com.massivecraft.mcore.MCore [Cayorion], Vault v1.2.27-b349 net.milkbowl.vault.Vault [cereal, Sleaker, mung3r], RegenBlock vBeta 5.7 net.dmg2.RegenBlock.RegenBlock [], Multiverse-Core v2.4-b527 com.onarandombox.MultiverseCore.MultiverseCore [Rigby, fernferret, lithium3141, main--], WorldGuard v5.8 com.sk89q.worldguard.bukkit.WorldGuardPlugin [], MineResetLite v0.3.5 com.koletar.jj.mineresetlite.MineResetLite [jjkoletar], AutoMessage v2.3.5 com.TeamNovus.AutoMessage.AutoMessage [ELCHILEN0], CasinoSlots v2.5.5-b156 com.craftyn.casinoslots.CasinoSlots [[graywolf336, Darazo]], Shopkeepers v1.15.1 com.nisovin.shopkeepers.ShopkeepersPlugin [nisovin], MineMaze v2.1 me.Laubi.MineMaze.MineMazePlugin [Laubi], CombatLog v1.8.11 com.jackproehl.plugins.CombatLog [JackProehl, CraigEge, iiSnipez], CrackShot v0.97.7 com.shampaggon.crackshot.CSDirector [Shampaggon], ChestShop v3.64 com.Acrobot.ChestShop.ChestShop [Acrobot], ClearLag v2.6.2 me.minebuilders.clearlag.Clearlag [bob7l], Votifier v1.9 com.vexsoftware.votifier.Votifier [blakeman8192, Kramer], Essentials v2.12.1 com.earth2me.essentials.Essentials [Zenexer, ementalo, Aelux, Brettflan, KimKandor, snowleo, ceulemans, Xeology, KHobbits, md_5, Iaccidentally], ShowCaseStandalone v616 com.kellerkindt.scs.ShowCaseStandalone [kellerkindt, sorklin, bitfreeze, Ryzko, rtainc], SimpleRegionMarket v3.6 me.ienze.SimpleRegionMarket.SimpleRegionMarket [Ienze, theZorro266], CommandSigns v1.9.1.1 org.zonedabone.commandsigns.CommandSigns [zonedabone, CJxD, HansAnderson], SimpleVoteListener v2.6 me.puyttre.svl.SimpleVoteListener [Puyttre], EssentialsProtect v2.12.1 com.earth2me.essentials.protect.EssentialsProtect [Zenexer, ementalo, Aelux, Brettflan, KimKandor, snowleo, ceulemans, Xeology, KHobbits], EssentialsSpawn v2.12.1 com.earth2me.essentials.spawn.EssentialsSpawn [Zenexer, ementalo, Aelux, Brettflan, KimKandor, snowleo, ceulemans, Xeology, KHobbits], Multiverse-Portals v2.4-b548 com.onarandombox.MultiversePortals.MultiversePortals [Rigby, fernferret], SignShop v2.8.2 org.wargamer2010.signshop.SignShop [Wargamer2010 and Devinish], EssentialsChat v2.12.1 com.earth2me.essentials.chat.EssentialsChat [Zenexer, ementalo, Aelux, Brettflan, KimKandor, snowleo, ceulemans, Xeology, KHobbits, md_5, Okamosy, Iaccidentally],}
  Warnings: DEFAULT
  Threads: { WAITING Finalizer: [java.lang.Object.wait(Native Method), java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:135), java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:151), java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:189)], WAITING Thread-5: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.park(LockSupport.java:186), java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043), java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442), net.minecraft.util.com.mojang.util.QueueLogAppender.getNextLogEvent(QueueLogAppender.java:73), org.bukkit.craftbukkit.v1_7_R1.util.TerminalConsoleWriterThread.run(TerminalConsoleWriterThread.java:25), java.lang.Thread.run(Thread.java:724)], RUNNABLE Netty IO #5: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98), net.minecraft.util.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:591), net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:301), net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101), java.lang.Thread.run(Thread.java:724)], WAITING pool-5-thread-5: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.park(LockSupport.java:186), java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043), java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442), java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068), java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130), java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615), java.lang.Thread.run(Thread.java:724)], WAITING Chunk I/O Executor Thread-1: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.park(LockSupport.java:186), java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043), java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442), java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068), java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130), java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615), java.lang.Thread.run(Thread.java:724)], WAITING pool-5-thread-4: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.park(LockSupport.java:186), java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043), java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442), java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068), java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130), java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615), java.lang.Thread.run(Thread.java:724)], RUNNABLE Netty IO #0: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98), net.minecraft.util.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:591), net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:301), net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101), java.lang.Thread.run(Thread.java:724)], TIMED_WAITING pool-4-thread-1: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226), java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2082), java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1090), java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:807), java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068), java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130), java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615), java.lang.Thread.run(Thread.java:724)], TIMED_WAITING pool-3-thread-444: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226), java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460), java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:359), java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:942), java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068), java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130), java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615), java.lang.Thread.run(Thread.java:724)], WAITING pool-6-thread-1: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.park(LockSupport.java:186), java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043), java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442), java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068), java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130), java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615), java.lang.Thread.run(Thread.java:724)], TIMED_WAITING Server Infinisleeper: [java.lang.Thread.sleep(Native Method), net.minecraft.server.v1_7_R1.ThreadSleepForever.run(SourceFile:62)], RUNNABLE Netty IO #2: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98), net.minecraft.util.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:591), net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:301), net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101), java.lang.Thread.run(Thread.java:724)], RUNNABLE Netty IO #15: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98), net.minecraft.util.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:591), net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:301), net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101), java.lang.Thread.run(Thread.java:724)], TIMED_WAITING File IO Thread: [java.lang.Thread.sleep(Native Method), net.minecraft.server.v1_7_R1.FileIOThread.b(SourceFile:37), net.minecraft.server.v1_7_R1.FileIOThread.run(SourceFile:23), java.lang.Thread.run(Thread.java:724)], WAITING pool-5-thread-3: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.park(LockSupport.java:186), java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043), java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442), java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068), java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130), java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615), java.lang.Thread.run(Thread.java:724)], RUNNABLE Netty IO #11: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98), net.minecraft.util.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:591), net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:301), net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101), java.lang.Thread.run(Thread.java:724)], RUNNABLE DestroyJavaVM: [], RUNNABLE Thread-13: [java.net.PlainSocketImpl.socketAccept(Native Method), java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398), java.net.ServerSocket.implAccept(ServerSocket.java:530), java.net.ServerSocket.accept(ServerSocket.java:498), com.vexsoftware.votifier.net.VoteReceiver.run(VoteReceiver.java:114)], TIMED_WAITING Thread-11: [java.lang.Thread.sleep(Native Method), net.dmg2.RegenBlock.RegenBlockQueue.run(RegenBlockQueue.java:35), java.lang.Thread.run(Thread.java:724)], TIMED_WAITING pool-3-thread-445: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226), java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460), java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:359), java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:942), java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068), java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130), java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615), java.lang.Thread.run(Thread.java:724)], RUNNABLE Signal Dispatcher: [], RUNNABLE Netty IO #8: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98), net.minecraft.util.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:591), net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:301), net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101), java.lang.Thread.run(Thread.java:724)], RUNNABLE Netty IO #10: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98), net.minecraft.util.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:591), net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:301), net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101), java.lang.Thread.run(Thread.java:724)], RUNNABLE Server thread: [java.lang.Thread.dumpThreads(Native Method), java.lang.Thread.getAllStackTraces(Thread.java:1619), org.bukkit.craftbukkit.v1_7_R1.CraftCrashReport.call(CraftCrashReport.java:28), net.minecraft.server.v1_7_R1.CrashReportSystemDetails.a(SourceFile:74), net.minecraft.server.v1_7_R1.CrashReport.h(CrashReport.java:45), net.minecraft.server.v1_7_R1.CrashReport.<init>(CrashReport.java:33), net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:474), net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617)], RUNNABLE Server console handler: [java.io.FileInputStream.readBytes(Native Method), java.io.FileInputStream.read(FileInputStream.java:242), java.io.BufferedInputStream.fill(BufferedInputStream.java:235), java.io.BufferedInputStream.read(BufferedInputStream.java:254), java.io.FilterInputStream.read(FilterInputStream.java:83), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader$1.read(ConsoleReader.java:167), org.bukkit.craftbukkit.libs.jline.internal.InputStreamReader.read(InputStreamReader.java:267), org.bukkit.craftbukkit.libs.jline.internal.InputStreamReader.read(InputStreamReader.java:204), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readCharacter(ConsoleReader.java:995), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLineSimple(ConsoleReader.java:1506), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLine(ConsoleReader.java:1153), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLine(ConsoleReader.java:1117), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLine(ConsoleReader.java:1105), net.minecraft.server.v1_7_R1.ThreadCommandReader.run(ThreadCommandReader.java:34)], RUNNABLE Netty IO #13: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98), net.minecraft.util.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:591), net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:301), net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101), java.lang.Thread.run(Thread.java:724)], TIMED_WAITING Snooper Timer: [java.lang.Object.wait(Native Method), java.util.TimerThread.mainLoop(Timer.java:552), java.util.TimerThread.run(Timer.java:505)], RUNNABLE Netty IO #12: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98), net.minecraft.util.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:591), net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:301), net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101), java.lang.Thread.run(Thread.java:724)], RUNNABLE Netty IO #14: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98), net.minecraft.util.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:591), net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:301), net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101), java.lang.Thread.run(Thread.java:724)], RUNNABLE Netty IO #1: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98), net.minecraft.util.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:591), net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:301), net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101), java.lang.Thread.run(Thread.java:724)], WAITING pool-5-thread-2: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.park(LockSupport.java:186), java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043), java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442), java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068), java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130), java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615), java.lang.Thread.run(Thread.java:724)], RUNNABLE Netty IO #9: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98), net.minecraft.util.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:591), net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:301), net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101), java.lang.Thread.run(Thread.java:724)], RUNNABLE Query Listener #1: [java.net.PlainDatagramSocketImpl.receive0(Native Method), java.net.AbstractPlainDatagramSocketImpl.receive(AbstractPlainDatagramSocketImpl.java:145), java.net.DatagramSocket.receive(DatagramSocket.java:786), net.minecraft.server.v1_7_R1.RemoteStatusListener.run(SourceFile:256), java.lang.Thread.run(Thread.java:724)], RUNNABLE Netty IO #7: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98), net.minecraft.util.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:591), net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:301), net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101), java.lang.Thread.run(Thread.java:724)], WAITING Reference Handler: [java.lang.Object.wait(Native Method), java.lang.Object.wait(Object.java:503), java.lang.ref.Reference$ReferenceHandler.run(Reference.java:133)], RUNNABLE Netty IO #6: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98), net.minecraft.util.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:591), net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:301), net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101), java.lang.Thread.run(Thread.java:724)], TIMED_WAITING MStore ExamineThread: [java.lang.Thread.sleep(Native Method), com.massivecraft.mcore.store.ExamineThread.run(ExamineThread.java:55)], WAITING pool-5-thread-1: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.park(LockSupport.java:186), java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043), java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442), java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068), java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130), java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615), java.lang.Thread.run(Thread.java:724)], WAITING Java2D Disposer: [java.lang.Object.wait(Native Method), java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:135), java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:151), sun.java2d.Disposer.run(Disposer.java:145), java.lang.Thread.run(Thread.java:724)], RUNNABLE Netty IO #3: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98), net.minecraft.util.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:591), net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:301), net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101), java.lang.Thread.run(Thread.java:724)], RUNNABLE Netty IO #4: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98), net.minecraft.util.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:591), net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:301), net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101), java.lang.Thread.run(Thread.java:724)],}
  Recent tasks from 553616-553646{SignShop:org.wargamer2010.signshop.timing.TimeManager@553651,SignShop:org.wargamer2010.signshop.timing.TimeManager@553671,}
    Profiler Position: N/A (disabled)
    Vec3 Pool Size: ~~ERROR~~ NullPointerException: null
    Player Count: 15 / 50; [EntityPlayer['3lite_men_x'/874189, l='Hjem', x=8827.37, y=60.00, z=7238.30](3lite_men_x at 8827.37166916048,60.0,7238.297665368678), EntityPlayer['nessabieber1'/2191882, l='world', x=9287.56, y=62.40, z=7162.73](nessabieber1 at 9287.558956970995,62.398643193088056,7162.726536354592), EntityPlayer['Benjaminwarming'/4152537, l='world', x=9323.43, y=62.26, z=7201.01](Benjaminwarming at 9323.430858949203,62.25514710539431,7201.007604604664), EntityPlayer['mystafri'/791648, l='world', x=4279.51, y=60.00, z=301.70](mystafri at 4279.512207249739,60.0,301.69999998807907), EntityPlayer['klogborg'/46918, l='world', x=5072.83, y=65.00, z=-3732.43](klogborg at 5072.831606002905,65.0,-3732.429102645836), EntityPlayer['Bradsted'/5627532, l='world', x=9242.03, y=47.00, z=7102.47](Bradsted at 9242.028172248853,47.0,7102.474510225429), EntityPlayer['UnderCoverShock'/5907916, l='world', x=8968.91, y=64.00, z=7070.86](UnderCoverShock at 8968.909425180524,64.0,7070.857682757653), EntityPlayer['aggerboy'/6093125, l='world', x=9283.51, y=66.17, z=7163.01](aggerboy at 9283.506886755747,66.16610926093821,7163.014352631196), EntityPlayer['benj6332'/6128611, l='world', x=8943.97, y=66.00, z=7073.51](benj6332 at 8943.967204023385,66.0,7073.510460050221), EntityPlayer['Emil2205'/6716884, l='world', x=9264.55, y=64.50, z=7154.70](Emil2205 at 9264.545204119586,64.5,7154.703474204262), EntityPlayer['bastian040'/7444850, l='world', x=5120.04, y=67.17, z=-3808.52](bastian040 at 5120.044618136937,67.1707870772188,-3808.524617727525), EntityPlayer['biasbi02'/7661703, l='world', x=8988.98, y=63.00, z=7042.35](biasbi02 at 8988.975448267794,63.0,7042.346842552144), EntityPlayer['andersbj0407'/7909063, l='world', x=9327.56, y=62.46, z=7236.16](andersbj0407 at 9327.556089642227,62.455667441867675,7236.155130439452), EntityPlayer['GameBooster8x'/6238745, l='Nether2', x=1089.34, y=89.98, z=881.64](GameBooster8x at 1089.3383996136838,89.983553200128,881.6413530115782), EntityPlayer['Nicolai251'/5949508, l='Hjem', x=8777.50, y=74.00, z=7239.50](Nicolai251 at 8777.5,74.0,7239.5)]
    Is Modded: Definitely; Server brand changed to 'CraftBukkit'
    Type: Dedicated Server (map_server.txt)

I don't know what causes this, and I'm running multiple servers where it doesn't happen.

Does anyone know what it happens?

Anyone?

 

This is not caused by ur server. This is ur launcher, I got this problem too, but my launcher updated.

 

No, that IS the server The server crashes - not my client.

 

This is caused by one of your plugins doing something in an async method incorrectly. The best way to find out is through trial and error (removing plugins one by one until the error goes away).

 

Is PluginCatcher any use here mbaxter or am I not understanding its purpose properly?

 

If you can downgrade to beta 0.2, you can run PluginCatcher (I haven't pushed the update live for some of the changes that were added after the beta, but could compile that for you tonight if not).

http://dev.bukkit.org/bukkit-plugins/plugincatcher/

Add plugin, restart server, wait until plugins/PluginCatcher/async.log gets some entries. Pastebin those entries and tag me. They might a) log the wrong plugin b) be very confusing, so it's best to paste it here so I can see it.

 

mbaxter, nothing is getting written in async.log, but the console.log is being spammed with all kinds of things from console.log. The server has been crashing three times with the plugin active, but it was first installed yesterday.
I've pasted the contents of latest.log to pastebin: http://pastebin.com/VdZWvpnn

The server should be running the beta 0.2

Sorry for the delay, but it's not actually my server, I'm just from the game host that hosts this server. The owners of the server didn't want me to mess around with it before yesterday.

 

You waited so long to read the message that I'd uploaded a new version that only works on the latest dev builds of CraftBukkit

 

mbaxter Works now, and things and stuffs was written to the log
http://pastebin.com/hmsNiMAP

I forgot to tag you in the previous post, and I don't know if you'll get notified when I edited the post and tagged you...
So... mbaxter
Sorry for double posting :/

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Looks like something called RegenBlock is causing you some trouble. I'd suggest reporting the async getBlock calls to the author. I also set the thread to 'watched' so I get a notice for every message here.

 

Thans for the help! I've given the owner of the server a heads up, and they'll look at it tomorrow
I think that plugin is gonna be very helpful in the future!

 

Keep in mind that when it's running, it is slowing things down a bit. Definitely great when you're getting crashes because a slight slowdown beats crashing all the time, but I wouldn't suggest leaving it running at all times.