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    posted a message on 1.15.2 "Connection Lost: Internal Exception: java.lang.StackOverflowError"

    Hi,


    Ever since I created a minecraft server approximately 2 weks ago, following this tutorial: it has been very lagy from time to time. Once it gets "overloaded" we get the following error "Connection Lost: Internal Exception: java.lang.StackOverflowError". When I boot the server back up it works fine but after a few minutes it will start to lag, and eventuelly the server crashes again. I have done more or less the same way a few years back, when creating a server, and it has been working without any problem.


    Specs:
    Windows 10 (64 bit)
    Java 8

    16 GB RAM

    Intel i5 9400F 2.90 GHz

    Nvidia GeForce GTX 1650

    I have checked my internet connection at its stable


    This is the error message I get in the crash report:

    ---- Minecraft Crash Report -------- Minecraft Crash Report ----//


    Hi. I'm Minecraft, and I'm a crashaholic.
    Time: 6/1/20 5:18 PMDescription: Watching Server


    java.lang.Error

    at it.unimi.dsi.fastutil.doubles.DoubleArrayList.listIterator(DoubleArrayList.java:486)

    at it.unimi.dsi.fastutil.doubles.AbstractDoubleList.listIterator(AbstractDoubleList.java:147)

    at it.unimi.dsi.fastutil.doubles.AbstractDoubleList.equals(AbstractDoubleList.java:371)

    at java.util.Objects.equals(Unknown Source)

    at cwc.a(SourceFile:397) at cwc.c(SourceFile:179)

    at bjk$1.tryAdvance(SourceFile:140)

    at com.google.common.collect.CollectSpliterators$1FlatMapSpliterator.tryAdvance(CollectSpliterators.java:226)

    at java.util.stream.ReferencePipeline.forEachWithCancel(Unknown Source)

    at java.util.stream.AbstractPipeline.copyIntoWithCancel(Unknown Source)

    at java.util.stream.AbstractPipeline.copyInto(Unknown Source)

    at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)

    at java.util.stream.MatchOps$MatchOp.evaluateSequential(Unknown Source)

    at java.util.stream.MatchOps$MatchOp.evaluateSequential(Unknown Source)

    at java.util.stream.AbstractPipeline.evaluate(Unknown Source)

    at java.util.stream.ReferencePipeline.allMatch(Unknown Source)

    at bjk.a(SourceFile:61)

    at bjk.a(SourceFile:49)

    at bkg.a(SourceFile:135)

    at xb.a(SourceFile:406)

    at xb$$Lambda$2452/10867116.accept(Unknown Source)

    at it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap$1.forEach(Long2ObjectLinkedOpenHashMap.java:1661)

    at com.google.common.collect.Iterables$UnmodifiableIterable.forEach(Iterables.java:105)

    at xb.o(SourceFile:371) at xb.a(SourceFile:340)

    at xd.a(SourceFile:324) at net.minecraft.server.MinecraftServer.b(SourceFile:854)

    at wd.b(SourceFile:347) at net.minecraft.server.MinecraftServer.a(SourceFile:793)

    at net.minecraft.server.MinecraftServer.run(SourceFile:655) at java.lang.Thread.run(Unknown Source)


    A detailed walkthrough of the error, its code path and all known details is as follows:


    Head

    Thread: Server Watchdog

    Stacktrace:

    at it.unimi.dsi.fastutil.doubles.DoubleArrayList.listIterator(DoubleArrayList.java:486)

    at it.unimi.dsi.fastutil.doubles.AbstractDoubleList.listIterator(AbstractDoubleList.java:147) at it.unimi.dsi.fastutil.doubles.AbstractDoubleList.equals(AbstractDoubleList.java:371)

    at java.util.Objects.equals(Unknown Source)

    at cwc.a(SourceFile:397) at cwc.c(SourceFile:179)

    at bjk$1.tryAdvance(SourceFile:140)

    at com.google.common.collect.CollectSpliterators$1FlatMapSpliterator.tryAdvance(CollectSpliterators.java:226)

    at java.util.stream.ReferencePipeline.forEachWithCancel(Unknown Source)

    at java.util.stream.AbstractPipeline.copyIntoWithCancel(Unknown Source)

    at java.util.stream.AbstractPipeline.copyInto(Unknown Source)

    at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)

    at java.util.stream.MatchOps$MatchOp.evaluateSequential(Unknown Source)

    at java.util.stream.MatchOps$MatchOp.evaluateSequential(Unknown Source)

    at java.util.stream.AbstractPipeline.evaluate(Unknown Source)

    at java.util.stream.ReferencePipeline.allMatch(Unknown Source)

    at bjk.a(SourceFile:61) at bjk.a(SourceFile:49) at bkg.a(SourceFile:135)

    at xb.a(SourceFile:406) at xb$$Lambda$2452/10867116.accept(Unknown Source)

    at it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap$1.forEach(Long2ObjectLinkedOpenHashMap.java:1661)

    at com.google.common.collect.Iterables$UnmodifiableIterable.forEach(Iterables.java:105)

    at xb.o(SourceFile:371) at xb.a(SourceFile:340) at xd.a(SourceFile:324)

    at net.minecraft.server.MinecraftServer.b(SourceFile:854) at wd.b(SourceFile:347)

    at net.minecraft.server.MinecraftServer.a(SourceFile:793)

    -- Thread Dump --

    Details:

    Threads: "Netty Server IO #3" Id=48 RUNNABLE

    at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)

    at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(Unknown Source)

    at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(Unknown Source)

    at sun.nio.ch.WindowsSelectorImpl.doSelect(Unknown Source)

    at sun.nio.ch.SelectorImpl.lockAndDoSelect(Unknown Source)

    - locked [email protected]

    - locked [email protected]

    - locked [email protected] at sun.nio.ch.SelectorImpl.select(Unknown Source)

    at io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:62)

    at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:756) ...


    "Netty Server IO #2" Id=47 RUNNABLE (in native)

    at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)

    at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(Unknown Source)

    at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(Unknown Source)

    at sun.nio.ch.WindowsSelectorImpl.doSelect(Unknown Source)

    at sun.nio.ch.SelectorImpl.lockAndDoSelect(Unknown Source)

    - locked [email protected]

    - locked [email protected]

    - locked [email protected]

    at sun.nio.ch.SelectorImpl.select(Unknown Source)

    at io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:62)

    at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:756) ...


    "Server-Worker-7" Id=45 WAITING on [email protected]

    at sun.misc.Unsafe.park(Native Method)

    - waiting on java.util.concurrent.ForkJoinPoo[email protected]

    at java.util.concurrent.ForkJoinPool.awaitWork(Unknown Source)

    at java.util.concurrent.ForkJoinPool.runWorker(Unknown Source)

    at java.util.concurrent.ForkJoinWorkerThread.run(Unknown Source)


    "Server-Worker-8" Id=46 WAITING on [email protected]

    at sun.misc.Unsafe.park(Native Method)

    - waiting on [email protected]

    at java.util.concurrent.ForkJoinPool.awaitWork(Unknown Source)

    at java.util.concurrent.ForkJoinPool.runWorker(Unknown Source)

    at java.util.concurrent.ForkJoinWorkerThread.run(Unknown Source)


    "Server-Worker-6" Id=44 WAITING on [email protected]

    at sun.misc.Unsafe.park(Native Method) - waiting on [email protected]

    at java.util.concurrent.ForkJoinPool.awaitWork(Unknown Source) at java.util.concurrent.ForkJoinPool.runWorker(Unknown Source)

    at java.util.concurrent.ForkJoinWorkerThread.run(Unknown Source)


    "Netty Server IO #1" Id=40 RUNNABLE at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)

    at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(Unknown Source)

    at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(Unknown Source)

    at sun.nio.ch.WindowsSelectorImpl.doSelect(Unknown Source)

    at sun.nio.ch.SelectorImpl.lockAndDoSelect(Unknown Source)

    - locked [email protected]

    - locked [email protected]

    - locked [email protected] at sun.nio.ch.SelectorImpl.select(Unknown Source)

    at io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:62)

    at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:756) ...


    "Server Watchdog" Id=39 RUNNABLE at sun.management.ThreadImpl.dumpThreads0(Native Method)

    at sun.management.ThreadImpl.dumpAllThreads(Unknown Source)

    at wg.run(SourceFile:45) at java.lang.Thread.run(Unknown Source)


    "poi IO worker" Id=38 WAITING on [email protected]

    at sun.misc.Unsafe.park(Native Method)

    - waiting on [email protected]

    at java.util.concurrent.locks.LockSupport.park(Unknown Source)

    at caz.c(SourceFile:124) at caz.d(SourceFile:134)

    at caz$$Lambda$2161/18813107.run(Unknown Source) at java.lang.Thread.run(Unknown Source)


    "chunk IO worker" Id=37 WAITING on [email protected]

    at sun.misc.Unsafe.park(Native Method)

    - waiting on [email protected]

    at java.util.concurrent.locks.LockSupport.park(Unknown Source)

    at caz.c(SourceFile:124) at caz.d(SourceFile:134)

    at caz$$Lambda$2161/18813107.run(Unknown Source)

    at java.lang.Thread.run(Unknown Source)

    "poi IO worker" Id=36 WAITING on [email protected]

    at sun.misc.Unsafe.park(Native Method)

    - waiting on [email protected] at java.util.concurrent.locks.LockSupport.park(Unknown Source) at caz.c(SourceFile:124)

    at caz.d(SourceFile:134) at caz$$Lambda$2161/18813107.run(Unknown Source)

    at java.lang.Thread.run(Unknown Source)


    "chunk IO worker" Id=35 WAITING on [email protected]

    at sun.misc.Unsafe.park(Native Method)

    - waiting on [email protected]

    at java.util.concurrent.locks.LockSupport.park(Unknown Source)

    at caz.c(SourceFile:124) at caz.d(SourceFile:134) at caz$$Lambda$2161/18813107.run(Unknown Source)

    at java.lang.Thread.run(Unknown Source)


    "poi IO worker" Id=34 WAITING on [email protected]

    at sun.misc.Unsafe.park(Native Method)

    - waiting on [email protected]

    at java.util.concurrent.locks.LockSupport.park(Unknown Source)

    at caz.c(SourceFile:124) at caz.d(SourceFile:134) at caz$$Lambda$2161/18813107.run(Unknown Source)

    at java.lang.Thread.run(Unknown Source)


    "chunk IO worker" Id=33 WAITING on [email protected]

    at sun.misc.Unsafe.park(Native Method)

    - waiting on [email protected] at java.util.concurrent.locks.LockSupport.park(Unknown Source)

    at caz.c(SourceFile:124) at caz.d(SourceFile:134) at caz$$Lambda$2161/18813107.run(Unknown Source)

    at java.lang.Thread.run(Unknown Source)


    "Netty Server IO #0" Id=32 RUNNABLE (in native)

    at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)

    at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(Unknown Source)

    at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(Unknown Source)

    at sun.nio.ch.WindowsSelectorImpl.doSelect(Unknown Source)

    at sun.nio.ch.SelectorImpl.lockAndDoSelect(Unknown Source)

    - locked [email protected]

    - locked [email protected]

    - locked [email protected]

    at sun.nio.ch.SelectorImpl.select(Unknown Source)

    at io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:62)

    at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:756) ...


    "ObjectCleanerThread" Id=31 TIMED_WAITING on [email protected] at java.lang.Object.wait(Native Method) - waiting on [email protected] at java.lang.ref.ReferenceQueue.remove(Unknown Source)

    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(Unknown Source)

    "D3D Screen Updater" Id=30 RUNNABLE (in native) at sun.java2d.d3d.D3DRenderQueue.flushBuffer(Native Method) at sun.java2d.d3d.D3DRenderQueue.flushBuffer(Unknown Source) at sun.java2d.d3d.D3DRenderQueue.flushNow(Unknown Source) at sun.java2d.d3d.D3DSurfaceData.swapBuffers(Unknown Source) at sun.java2d.d3d.D3DScreenUpdateManager.run(Unknown Source) at java.lang.Thread.run(Unknown Source)
    Number of locked synchronizers = 1 - [email protected]

    "DestroyJavaVM" Id=28 RUNNABLE

    "Server thread" Id=17 RUNNABLE at it.unimi.dsi.fastutil.doubles.DoubleArrayList.listIterator(DoubleArrayList.java:486) at it.unimi.dsi.fastutil.doubles.AbstractDoubleList.listIterator(AbstractDoubleList.java:147) at it.unimi.dsi.fastutil.doubles.AbstractDoubleList.equals(AbstractDoubleList.java:371) at java.util.Objects.equals(Unknown Source) at cwc.a(SourceFile:397) at cwc.c(SourceFile:179) at bjk$1.tryAdvance(SourceFile:140) at com.google.common.collect.CollectSpliterators$1FlatMapSpliterator.tryAdvance(CollectSpliterators.java:226) ...

    "Thread-3" Id=24 RUNNABLE at java.lang.Thread.currentThread(Native Method) at java.util.concurrent.locks.ReentrantLock$Sync.nonfairTryAcquire(Unknown Source) at java.util.concurrent.locks.ReentrantLock$NonfairSync.tryAcquire(Unknown Source) at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(Unknown Source) at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(Unknown Source) at java.util.concurrent.LinkedBlockingQueue.take(Unknown Source) at com.mojang.util.QueueLogAppender.getNextLogEvent(QueueLogAppender.java:77) at wj.a(SourceFile:137) ...

    "TimerQueue" Id=25 TIMED_WAITING on java.u[email protected]1559d2f at sun.misc.Unsafe.park(Native Method) - waiting on java.u[email protected]1559d2f at java.util.concurrent.locks.LockSupport.parkNanos(Unknown Source) at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(Unknown Source) at java.util.concurrent.DelayQueue.take(Unknown Source) at javax.swing.TimerQueue.run(Unknown Source) at java.lang.Thread.run(Unknown Source)
    Number of locked synchronizers = 1 - [email protected]

    "AWT-EventQueue-0" Id=23 WAITING on j[email protected] at java.lang.Object.wait(Native Method) - waiting on [email protected] at java.lang.Object.wait(Unknown Source) at sun.java2d.d3d.D3DScreenUpdateManager.runUpdateNow(Unknown Source) at sun.java2d.d3d.D3DBlitLoops.IsoBlit(Unknown Source) at sun.java2d.d3d.D3DRTTSurfaceToSurfaceBlit.Blit(Unknown Source) at sun.java2d.pipe.DrawImage.blitSurfaceData(Unknown Source) at sun.java2d.pipe.DrawImage.renderImageCopy(Unknown Source) at sun.java2d.pipe.DrawImage.copyImage(Unknown Source) ...

    "AWT-Windows" Id=21 RUNNABLE at sun.awt.windows.WToolkit.eventLoop(Native Method) at sun.awt.windows.WToolkit.run(Unknown Source) at java.lang.Thread.run(Unknown Source)

    "AWT-Shutdown" Id=20 WAITING on [email protected] at java.lang.Object.wait(Native Method) - waiting on [email protected] at java.lang.Object.wait(Unknown Source) at sun.awt.AWTAutoShutdown.run(Unknown Source) at java.lang.Thread.run(Unknown Source)

    "Java2D Disposer" Id=19 WAITING on [email protected] at java.lang.Object.wait(Native Method) - waiting on [email protected] at java.lang.ref.ReferenceQueue.remove(Unknown Source) at java.lang.ref.ReferenceQueue.remove(Unknown Source) at sun.java2d.Disposer.run(Unknown Source) at java.lang.Thread.run(Unknown Source)

    "Server Infinisleeper" Id=18 TIMED_WAITING at java.lang.Thread.sleep(Native Method) at wd$1.run(SourceFile:94)

    "Snooper Timer" Id=16 WAITING on [email protected] at java.lang.Object.wait(Native Method) - waiting on [email protected] at java.lang.Object.wait(Unknown Source) at java.util.TimerThread.mainLoop(Unknown Source) at java.util.TimerThread.run(Unknown Source)

    "Server-Worker-4" Id=14 RUNNABLE at coc.b(SourceFile:39) at cnv.b(SourceFile:175) at coc.a(SourceFile:139) at cnv.b(SourceFile:216) at cnx.a(SourceFile:193) at coa.a(SourceFile:61) at xg.b(SourceFile:176) at xg.a(SourceFile:108) ...

    "Server-Worker-2" Id=12 WAITING on [email protected] at sun.misc.Unsafe.park(Native Method) - waiting on [email protected] at java.util.concurrent.ForkJoinPool.awaitWork(Unknown Source) at java.util.concurrent.ForkJoinPool.runWorker(Unknown Source) at java.util.concurrent.ForkJoinWorkerThread.run(Unknown Source)

    "Attach Listener" Id=5 RUNNABLE

    "Signal Dispatcher" Id=4 RUNNABLE

    "Finalizer" Id=3 WAITING on [email protected] at java.lang.Object.wait(Native Method) - waiting on [email protected] at java.lang.ref.ReferenceQueue.remove(Unknown Source) at java.lang.ref.ReferenceQueue.remove(Unknown Source) at java.lang.ref.Finalizer$FinalizerThread.run(Unknown Source)

    "Reference Handler" Id=2 WAITING on [email protected] at java.lang.Object.wait(Native Method) - waiting on [email protected] at java.lang.Object.wait(Unknown Source) at java.lang.ref.Reference.tryHandlePending(Unknown Source) at java.lang.ref.Reference$ReferenceHandler.run(Unknown Source)


    Stacktrace: at wg.run(SourceFile:61) at java.lang.Thread.run(Unknown Source)
    -- System Details --Details: Minecraft Version: 1.15.2 Minecraft Version ID: 1.15.2 Operating System: Windows 10 (x86) version 10.0 Java Version: 1.8.0_251, Oracle Corporation Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation Memory: 5387208 bytes (5 MB) / 259522560 bytes (247 MB) up to 259522560 bytes (247 MB) CPUs: 6 JVM Flags: 0 total; Player Count: 2 / 20; [xe['Akkurat12'/256, l='world', x=-712.99, y=64.68, z=132.24], xe['KaptenKorea'/340, l='world', x=-723.06, y=64.02, z=121.16]] Data Packs: vanilla Is Modded: Unknown (can't tell) Type: Dedicated Server (map_server.txt)

    Posted in: Java Edition Support
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