---- Minecraft Crash Report ---- // Hi. I'm Minecraft, and I'm a crashaholic. Time: 12/10/17 12:15 PM Description: Exception ticking world java.util.ConcurrentModificationException at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:907) at java.util.ArrayList$Itr.next(ArrayList.java:857) at net.minecraft.server.v1_12_R1.PlayerChunkMap$3.a(PlayerChunkMap.java:71) at net.minecraft.server.v1_12_R1.PlayerChunkMap$3.computeNext(PlayerChunkMap.java:98) at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:145) at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:140) at net.minecraft.server.v1_12_R1.WorldServer.j(WorldServer.java:473) at net.minecraft.server.v1_12_R1.WorldServer.doTick(WorldServer.java:313) at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:801) at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) at java.lang.Thread.run(Thread.java:748) A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Server thread Stacktrace: at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:907) at java.util.ArrayList$Itr.next(ArrayList.java:857) at net.minecraft.server.v1_12_R1.PlayerChunkMap$3.a(PlayerChunkMap.java:71) at net.minecraft.server.v1_12_R1.PlayerChunkMap$3.computeNext(PlayerChunkMap.java:98) at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:145) at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:140) at net.minecraft.server.v1_12_R1.WorldServer.j(WorldServer.java:473) at net.minecraft.server.v1_12_R1.WorldServer.doTick(WorldServer.java:313) -- Affected level -- Details: Level name: Creative All players: 0 total; [] Chunk stats: ServerChunkCache: 1689 Drop: 1064 Level seed: -8049035064801985768 Level generator: ID 01 - flat, ver 0. Features enabled: true Level generator options: Level spawn location: World: (-2046,4,2641), Chunk: (at 2,0,1 in -128,165; contains blocks -2048,0,2640 to -2033,255,2655), Region: (-4,5; contains chunks -128,160 to -97,191, blocks -2048,0,2560 to -1537,255,3071) Level time: 472864443 game time, 47294000 day time Level dimension: 0 Level storage version: 0x04ABD - Anvil Level weather: Rain time: 0 (now: false), thunder time: 3288 (now: true) Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false Stacktrace: at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:801) at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) at java.lang.Thread.run(Thread.java:748) -- System Details -- Details: Minecraft Version: 1.12.2 Operating System: Linux (amd64) version 4.13.0-17-generic Java Version: 1.8.0_151, Oracle Corporation Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 1011566072 bytes (964 MB) / 2713714688 bytes (2588 MB) up to 7635730432 bytes (7282 MB) JVM Flags: 2 total; -Xms1G -Xmx8G IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94 CraftBukkit Information: Running: CraftBukkit version git-Spigot-549c1fa-70cc382 (MC: 1.12.2) (Implementing API version 1.12.2-R0.1-SNAPSHOT) true Plugins: { Essentials v2.0.1-b471 com.earth2me.essentials.Essentials [Zenexer, ementalo, Aelux, Brettflan, KimKandor, snowleo, ceulemans, Xeology, KHobbits, md_5, Iaccidentally, drtshock, vemacs], EssentialsSpawn v2.0.1-b471 com.earth2me.essentials.spawn.EssentialsSpawn [Zenexer, ementalo, Aelux, Brettflan, KimKandor, snowleo, ceulemans, Xeology, KHobbits], Multiverse-Core v1.1 com.onarandombox.MultiverseCore.MultiverseCore [Rigby, fernferret, lithium3141, main--],} Warnings: DEFAULT Reload Count: 0 Threads: { RUNNABLE Netty Server IO #2: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97), io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:62), io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:753), io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:409), io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858), java.lang.Thread.run(Thread.java:748)], RUNNABLE Netty Server IO #1: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97), io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:62), io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:753), io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:409), io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858), java.lang.Thread.run(Thread.java:748)], RUNNABLE Netty Server IO #0: [sun.nio.ch.EPollArrayWrapper.epollWait(Native Method), sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269), sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93), sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86), sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97), io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:62), io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:753), io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:409), io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858), java.lang.Thread.run(Thread.java:748)], WAITING NonBlockingInputStreamThread: [java.lang.Object.wait(Native Method), org.bukkit.craftbukkit.libs.jline.internal.NonBlockingInputStream.run(NonBlockingInputStream.java:278), java.lang.Thread.run(Thread.java:748)], TIMED_WAITING threadDeathWatcher-2-1: [java.lang.Thread.sleep(Native Method), io.netty.util.ThreadDeathWatcher$Watcher.run(ThreadDeathWatcher.java:152), io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:138), java.lang.Thread.run(Thread.java:748)], TIMED_WAITING process reaper: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215), java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460), java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:362), java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:941), java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1073), java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134), java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624), java.lang.Thread.run(Thread.java:748)], RUNNABLE Spigot Metrics Thread: [java.net.PlainSocketImpl.socketConnect(Native Method), java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350), java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206), java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188), java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392), java.net.Socket.connect(Socket.java:589), java.net.Socket.connect(Socket.java:538), sun.net.NetworkClient.doConnect(NetworkClient.java:180), sun.net.www.http.HttpClient.openServer(HttpClient.java:463), sun.net.www.http.HttpClient.openServer(HttpClient.java:558), sun.net.www.http.HttpClient.(HttpClient.java:242), sun.net.www.http.HttpClient.New(HttpClient.java:339), sun.net.www.http.HttpClient.New(HttpClient.java:357), sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220), sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156), sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050), sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984), sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334), sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309), org.spigotmc.Metrics.postPlugin(Metrics.java:430), org.spigotmc.Metrics.access$4(Metrics.java:345), org.spigotmc.Metrics$1.run(Metrics.java:240), java.util.TimerThread.mainLoop(Timer.java:555), java.util.TimerThread.run(Timer.java:505)], WAITING Snooper Timer: [java.lang.Object.wait(Native Method), java.lang.Object.wait(Object.java:502), java.util.TimerThread.mainLoop(Timer.java:526), java.util.TimerThread.run(Timer.java:505)], TIMED_WAITING Server Infinisleeper: [java.lang.Thread.sleep(Native Method), net.minecraft.server.v1_12_R1.DedicatedServer$1.run(DedicatedServer.java:60)], RUNNABLE Server console handler: [java.io.FileInputStream.readBytes(Native Method), java.io.FileInputStream.read(FileInputStream.java:255), java.io.BufferedInputStream.fill(BufferedInputStream.java:246), java.io.BufferedInputStream.read(BufferedInputStream.java:265), org.bukkit.craftbukkit.libs.jline.internal.NonBlockingInputStream.read(NonBlockingInputStream.java:169), org.bukkit.craftbukkit.libs.jline.internal.NonBlockingInputStream.read(NonBlockingInputStream.java:137), org.bukkit.craftbukkit.libs.jline.internal.NonBlockingInputStream.read(NonBlockingInputStream.java:246), org.bukkit.craftbukkit.libs.jline.internal.InputStreamReader.read(InputStreamReader.java:261), org.bukkit.craftbukkit.libs.jline.internal.InputStreamReader.read(InputStreamReader.java:198), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readCharacter(ConsoleReader.java:2145), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLine(ConsoleReader.java:2349), net.minecraft.server.v1_12_R1.DedicatedServer$2.run(DedicatedServer.java:85)], RUNNABLE Server thread: [java.lang.Thread.dumpThreads(Native Method), java.lang.Thread.getAllStackTraces(Thread.java:1610), org.bukkit.craftbukkit.v1_12_R1.CraftCrashReport.call(CraftCrashReport.java:30), net.minecraft.server.v1_12_R1.CrashReportSystemDetails.a(SourceFile:78), net.minecraft.server.v1_12_R1.CrashReport.h(CrashReport.java:128), net.minecraft.server.v1_12_R1.CrashReport.(CrashReport.java:35), net.minecraft.server.v1_12_R1.CrashReport.a(CrashReport.java:322), net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:806), net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406), net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679), net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577), java.lang.Thread.run(Thread.java:748)], WAITING Finalizer: [java.lang.Object.wait(Native Method), java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143), java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164), java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)], WAITING Thread-4: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.park(LockSupport.java:175), java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039), java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442), com.mojang.util.QueueLogAppender.getNextLogEvent(QueueLogAppender.java:77), org.bukkit.craftbukkit.v1_12_R1.util.TerminalConsoleWriterThread.run(TerminalConsoleWriterThread.java:27), java.lang.Thread.run(Thread.java:748)], WAITING Java2D Disposer: [java.lang.Object.wait(Native Method), java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143), java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164), sun.java2d.Disposer.run(Disposer.java:148), java.lang.Thread.run(Thread.java:748)], TIMED_WAITING File IO Thread: [java.lang.Thread.sleep(Native Method), net.minecraft.server.v1_12_R1.FileIOThread.c(SourceFile:51), net.minecraft.server.v1_12_R1.FileIOThread.run(SourceFile:30), java.lang.Thread.run(Thread.java:748)], RUNNABLE Signal Dispatcher: [], RUNNABLE DestroyJavaVM: [], WAITING Chunk I/O Executor Thread-1: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.park(LockSupport.java:175), java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039), java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442), java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074), java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134), java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624), java.lang.Thread.run(Thread.java:748)], TIMED_WAITING Spigot Watchdog Thread: [java.lang.Thread.sleep(Native Method), net.minecraft.server.v1_12_R1.MinecraftServer.stop(MinecraftServer.java:476), org.spigotmc.RestartCommand.restart(RestartCommand.java:81), org.spigotmc.RestartCommand.restart(RestartCommand.java:40), org.spigotmc.WatchdogThread.run(WatchdogThread.java:85)], WAITING pool-5-thread-1: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.park(LockSupport.java:175), java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039), java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442), java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074), java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134), java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624), java.lang.Thread.run(Thread.java:748)], WAITING Reference Handler: [java.lang.Object.wait(Native Method), java.lang.Object.wait(Object.java:502), java.lang.ref.Reference.tryHandlePending(Reference.java:191), java.lang.ref.Reference$ReferenceHandler.run(Reference.java:153)], RUNNABLE Craft Scheduler Thread - 6: [java.net.PlainSocketImpl.socketConnect(Native Method), java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350), java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206), java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188), java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392), java.net.Socket.connect(Socket.java:589), java.net.Socket.connect(Socket.java:538), sun.net.NetworkClient.doConnect(NetworkClient.java:180), sun.net.www.http.HttpClient.openServer(HttpClient.java:463), sun.net.www.http.HttpClient.openServer(HttpClient.java:558), sun.net.www.http.HttpClient.(HttpClient.java:242), sun.net.www.http.HttpClient.New(HttpClient.java:339), sun.net.www.http.HttpClient.New(HttpClient.java:357), sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220), sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156), sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050), sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984), sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1334), sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1309), com.earth2me.essentials.metrics.Metrics.postPlugin(Metrics.java:475), com.earth2me.essentials.metrics.Metrics.access$400(Metrics.java:61), com.earth2me.essentials.metrics.Metrics$1.run(Metrics.java:227), org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftTask.run(CraftTask.java:71), org.bukkit.craftbukkit.v1_12_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:52), java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149), java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624), java.lang.Thread.run(Thread.java:748)],} Recent tasks from 36-66{Essentials:com.earth2me.essentials.spawn.EssentialsSpawnPlayerListener$1@91,Essentials:com.earth2me.essentials.EssentialsPlayerListener$1@91,} Profiler Position: N/A (disabled) Player Count: 0 / 120; [] Is Modded: Definitely; Server brand changed to 'Spigot' Type: Dedicated Server (map_server.txt)