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  1. Minecraft: Java Edition
  2. MC-149200

Crash: "Watching Server" - java.lang.Error

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • None
    • Minecraft 1.14
    • None
    • Minecraft Version: 1.14
      Operating System: Linux (amd64) version 4.15.18-12-pve
      Java Version: 1.8.0_112, Oracle Corporation
      Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    • Unconfirmed
    • Crash

      The attached crash occured in 1.14 with 10 players online.
      I cannot really pin down a cause, but this is the last thing the log reported:

      ---- Minecraft Crash Report ----
      // Everything's going to plan. No, really, that was supposed to happen.
      
      Time: 4/23/19 6:36 PM
      Description: Watching Server
      
      java.lang.Error
      	at sun.misc.Unsafe.park(Native Method)
      	at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
      	at agh.c(SourceFile:125)
      	at ve.b(SourceFile:114)
      	at ve.a(SourceFile:100)
      	at bhh.a(SourceFile:195)
      	at bhk.a(SourceFile:100)
      	at bhh.c(SourceFile:190)
      	at bhh.e_(SourceFile:412)
      	at bml.b(SourceFile:198)
      	at bxj.A(SourceFile:718)
      	at us.a(SourceFile:553)
      	at us$$Lambda$2347/262100474.apply(Unknown Source)
      	at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
      	at com.mojang.datafixers.util.Either.flatMap(Either.java:191)
      	at us.a(SourceFile:551)
      	at us$$Lambda$2089/68973626.apply(Unknown Source)
      	at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:602)
      	at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
      	at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442)
      	at uu.b(SourceFile:57)
      	at uu$$Lambda$2133/811020170.run(Unknown Source)
      	at agk.e(SourceFile:83)
      	at agk.a(SourceFile:123)
      	at agk.run(SourceFile:91)
      	at agh.h(SourceFile:135)
      	at agh.p(SourceFile:114)
      	at ve$a.p(SourceFile:438)
      	at ve.d(SourceFile:194)
      	at net.minecraft.server.MinecraftServer.aW(SourceFile:708)
      	at net.minecraft.server.MinecraftServer.p(SourceFile:696)
      	at agh.bf(SourceFile:99)
      	at net.minecraft.server.MinecraftServer.o(SourceFile:680)
      	at net.minecraft.server.MinecraftServer.run(SourceFile:636)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      A detailed walkthrough of the error, its code path and all known details is as follows:
      ---------------------------------------------------------------------------------------
      
      -- Head --
      Thread: Server Watchdog
      Stacktrace:
      	at sun.misc.Unsafe.park(Native Method)
      	at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
      	at agh.c(SourceFile:125)
      	at ve.b(SourceFile:114)
      	at ve.a(SourceFile:100)
      	at bhh.a(SourceFile:195)
      	at bhk.a(SourceFile:100)
      	at bhh.c(SourceFile:190)
      	at bhh.e_(SourceFile:412)
      	at bml.b(SourceFile:198)
      	at bxj.A(SourceFile:718)
      	at us.a(SourceFile:553)
      	at us$$Lambda$2347/262100474.apply(Unknown Source)
      	at com.mojang.datafixers.util.Either$Left.map(Either.java:38)
      	at com.mojang.datafixers.util.Either.flatMap(Either.java:191)
      	at us.a(SourceFile:551)
      	at us$$Lambda$2089/68973626.apply(Unknown Source)
      	at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:602)
      	at java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
      	at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:442)
      	at uu.b(SourceFile:57)
      	at uu$$Lambda$2133/811020170.run(Unknown Source)
      	at agk.e(SourceFile:83)
      	at agk.a(SourceFile:123)
      	at agk.run(SourceFile:91)
      	at agh.h(SourceFile:135)
      	at agh.p(SourceFile:114)
      	at ve$a.p(SourceFile:438)
      	at ve.d(SourceFile:194)
      	at net.minecraft.server.MinecraftServer.aW(SourceFile:708)
      	at net.minecraft.server.MinecraftServer.p(SourceFile:696)
      	at agh.bf(SourceFile:99)
      	at net.minecraft.server.MinecraftServer.o(SourceFile:680)
      
      -- Thread Dump --
      Details:
      	Threads: "Keep-Alive-Timer" Id=108 TIMED_WAITING
      	at java.lang.Thread.sleep(Native Method)
      	at sun.net.www.http.KeepAliveCache.run(KeepAliveCache.java:172)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Netty Epoll Server IO #15" Id=57 RUNNABLE (in native)
      	at io.netty.channel.epoll.Native.epollWait0(Native Method)
      	at io.netty.channel.epoll.Native.epollWait(Native.java:114)
      	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
      	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
      	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Netty Epoll Server IO #14" Id=56 RUNNABLE (in native)
      	at io.netty.channel.epoll.Native.epollWait0(Native Method)
      	at io.netty.channel.epoll.Native.epollWait(Native.java:114)
      	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
      	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
      	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Netty Epoll Server IO #13" Id=55 RUNNABLE
      	at io.netty.channel.epoll.Native.epollWait0(Native Method)
      	at io.netty.channel.epoll.Native.epollWait(Native.java:114)
      	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
      	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
      	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Netty Epoll Server IO #12" Id=54 RUNNABLE (in native)
      	at io.netty.channel.epoll.Native.epollWait0(Native Method)
      	at io.netty.channel.epoll.Native.epollWait(Native.java:114)
      	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
      	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
      	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Netty Epoll Server IO #11" Id=53 RUNNABLE (in native)
      	at io.netty.channel.epoll.Native.epollWait0(Native Method)
      	at io.netty.channel.epoll.Native.epollWait(Native.java:114)
      	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
      	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
      	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Netty Epoll Server IO #10" Id=49 RUNNABLE (in native)
      	at io.netty.channel.epoll.Native.epollWait0(Native Method)
      	at io.netty.channel.epoll.Native.epollWait(Native.java:114)
      	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
      	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
      	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Netty Epoll Server IO #9" Id=48 RUNNABLE (in native)
      	at io.netty.channel.epoll.Native.epollWait0(Native Method)
      	at io.netty.channel.epoll.Native.epollWait(Native.java:114)
      	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
      	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
      	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Netty Epoll Server IO #8" Id=44 RUNNABLE
      	at io.netty.channel.epoll.Native.epollWait0(Native Method)
      	at io.netty.channel.epoll.Native.epollWait(Native.java:114)
      	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
      	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
      	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Netty Epoll Server IO #7" Id=43 RUNNABLE (in native)
      	at io.netty.channel.epoll.Native.epollWait0(Native Method)
      	at io.netty.channel.epoll.Native.epollWait(Native.java:114)
      	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
      	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
      	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Java2D Disposer" Id=41 WAITING on java.lang.ref.ReferenceQueue$Lock@1df1fec0
      	at java.lang.Object.wait(Native Method)
      	-  waiting on java.lang.ref.ReferenceQueue$Lock@1df1fec0
      	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
      	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164)
      	at sun.java2d.Disposer.run(Disposer.java:148)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Server Watchdog" Id=40 RUNNABLE
      	at sun.management.ThreadImpl.dumpThreads0(Native Method)
      	at sun.management.ThreadImpl.dumpAllThreads(ThreadImpl.java:454)
      	at uj.run(SourceFile:45)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "RCON Listener #2" Id=39 RUNNABLE (in native)
      	at java.net.PlainSocketImpl.socketAccept(Native Method)
      	at java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:409)
      	at java.net.ServerSocket.implAccept(ServerSocket.java:545)
      	at java.net.ServerSocket.accept(ServerSocket.java:513)
      	at yh.run(SourceFile:58)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Query Listener #1" Id=38 RUNNABLE
      	at java.net.PlainDatagramSocketImpl.receive0(Native Method)
      	-  locked java.net.PlainDatagramSocketImpl@1336030e
      	at java.net.AbstractPlainDatagramSocketImpl.receive(AbstractPlainDatagramSocketImpl.java:143)
      	-  locked java.net.PlainDatagramSocketImpl@1336030e
      	at java.net.DatagramSocket.receive(DatagramSocket.java:812)
      	-  locked java.net.DatagramPacket@170995b0
      	-  locked java.net.DatagramSocket@5d8cf55a
      	at yf.run(SourceFile:260)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Netty Epoll Server IO #6" Id=37 RUNNABLE
      	at io.netty.channel.epoll.Native.epollWait0(Native Method)
      	at io.netty.channel.epoll.Native.epollWait(Native.java:114)
      	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
      	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
      	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Netty Epoll Server IO #5" Id=36 RUNNABLE (in native)
      	at io.netty.channel.epoll.Native.epollWait0(Native Method)
      	at io.netty.channel.epoll.Native.epollWait(Native.java:114)
      	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
      	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
      	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Netty Epoll Server IO #4" Id=32 RUNNABLE (in native)
      	at io.netty.channel.epoll.Native.epollWait0(Native Method)
      	at io.netty.channel.epoll.Native.epollWait(Native.java:114)
      	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
      	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
      	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Netty Epoll Server IO #3" Id=31 RUNNABLE
      	at io.netty.channel.epoll.Native.epollWait0(Native Method)
      	at io.netty.channel.epoll.Native.epollWait(Native.java:114)
      	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
      	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
      	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Netty Epoll Server IO #2" Id=30 RUNNABLE (in native)
      	at io.netty.channel.epoll.Native.epollWait0(Native Method)
      	at io.netty.channel.epoll.Native.epollWait(Native.java:114)
      	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
      	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
      	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Netty Epoll Server IO #1" Id=29 RUNNABLE (in native)
      	at io.netty.channel.epoll.Native.epollWait0(Native Method)
      	at io.netty.channel.epoll.Native.epollWait(Native.java:114)
      	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
      	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
      	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Resource IO {0}" Id=28 WAITING on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@520b0935
      	at sun.misc.Unsafe.park(Native Method)
      	-  waiting on java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject@520b0935
      	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
      	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
      	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
      	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "Netty Epoll Server IO #0" Id=27 RUNNABLE (in native)
      	at io.netty.channel.epoll.Native.epollWait0(Native Method)
      	at io.netty.channel.epoll.Native.epollWait(Native.java:114)
      	at io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:239)
      	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:256)
      	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:884)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "ObjectCleanerThread" Id=26 TIMED_WAITING on java.lang.ref.ReferenceQueue$Lock@409eea4a
      	at java.lang.Object.wait(Native Method)
      	-  waiting on java.lang.ref.ReferenceQueue$Lock@409eea4a
      	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
      	at io.netty.util.internal.ObjectCleaner$1.run(ObjectCleaner.java:54)
      	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
      	at java.lang.Thread.run(Thread.java:745)
      
      
      "DestroyJavaVM" Id=24 RUNNABLE
      
      
      "Server thread" Id=21 TIMED_WAITING on java.lang.String@6393bf24
      	at sun.misc.Unsafe.park(Native Method)
      	-  waiting on java.lang.String@6393bf24
      	at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
      	at agh.c(SourceFile:125)
      	at ve.b(SourceFile:114)
      	at ve.a(SourceFile:100)
      	at bhh.a(SourceFile:195)
      	at bhk.a(SourceFile:100)
      	at bhh.c(SourceFile:190)
      	...
      
      
      "Server Infinisleeper" Id=22 TIMED_WAITING
      	at java.lang.Thread.sleep(Native Method)
      	at ug$1.run(SourceFile:93)
      
      
      "Snooper Timer" Id=20 WAITING on java.util.TaskQueue@38ec02f3
      	at java.lang.Object.wait(Native Method)
      	-  waiting on java.util.TaskQueue@38ec02f3
      	at java.lang.Object.wait(Object.java:502)
      	at java.util.TimerThread.mainLoop(Timer.java:526)
      	at java.util.TimerThread.run(Timer.java:505)
      
      
      "Signal Dispatcher" Id=4 RUNNABLE
      
      
      "Finalizer" Id=3 WAITING on java.lang.ref.ReferenceQueue$Lock@3224f67a
      	at java.lang.Object.wait(Native Method)
      	-  waiting on java.lang.ref.ReferenceQueue$Lock@3224f67a
      	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
      	at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164)
      	at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)
      
      
      "Reference Handler" Id=2 WAITING on java.lang.ref.Reference$Lock@55f86ce
      	at java.lang.Object.wait(Native Method)
      	-  waiting on java.lang.ref.Reference$Lock@55f86ce
      	at java.lang.Object.wait(Object.java:502)
      	at java.lang.ref.Reference.tryHandlePending(Reference.java:191)
      	at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:153)
      
      
      
      Stacktrace:
      	at uj.run(SourceFile:61)
      	at java.lang.Thread.run(Thread.java:745)
      
      -- System Details --
      Details:
      	Minecraft Version: 1.14
      	Operating System: Linux (amd64) version 4.15.18-12-pve
      	Java Version: 1.8.0_112, Oracle Corporation
      	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
      	Memory: 2621915512 bytes (2500 MB) / 4712824832 bytes (4494 MB) up to 7635730432 bytes (7282 MB)
      	JVM Flags: 1 total; -Xmx8192M
      	Player Count: 9 / 64; [vh['TyniteQuiverYT'/106, l='world', x=-202.77, y=66.00, z=190.77], vh['David3112'/869, l='world', x=-11152.19, y=274.74, z=9538.99], vh['Digit1704'/957, l='world', x=-366.50, y=64.69, z=613.50], vh['NinthRex5335'/4960, l='world', x=-199.03, y=66.00, z=187.97], vh['SivanEnnair'/14571, l='world', x=-356.03, y=69.00, z=612.51], vh['pdinklag'/39907, l='world', x=1529.30, y=69.00, z=359.44], vh['Darkbastio'/43827, l='world', x=-1533.55, y=78.00, z=517.51], vh['Gorberus1336'/78758, l='world', x=-196.41, y=66.00, z=189.96], vh['Danielle2605'/97321, l='world', x=999944.61, y=68.00, z=999982.59]]
      	Data Packs: vanilla, file/dvg (incompatible)
      	Is Modded: Unknown (can't tell)
      	Type: Dedicated Server (map_server.txt)
      

        1. crash-2019-04-23_18.36.42-server.txt
          16 kB
          Patrick Dinklage
        2. profile-results-2021-03-31_21.34.46.txt
          141 kB
          Daniel Bear

            Unassigned Unassigned
            pdinklag Patrick Dinklage
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              Created:
              Updated:
              Resolved: