pwrp@PcComp:~$ jattach 1859 threaddump Connected to remote JVM JVM response code = 0 2023-04-21 07:39:35 Full thread dump OpenJDK 64-Bit Server VM (11.0.16+8-post-Ubuntu-0ubuntu122.04 mixed mode, sharing): Threads class SMR info: _java_thread_list=0x00007f0ff0001120, length=15, elements={ 0x00007f1014015800, 0x00007f10140cb800, 0x00007f10140cd800, 0x00007f10140d3000, 0x00007f10140d5000, 0x00007f10140d7800, 0x00007f10140d9800, 0x00007f10140db800, 0x00007f101411e800, 0x00007f101417f800, 0x00007f0fcc001000, 0x00007f10140ee800, 0x00007f101414b800, 0x00007f10140f0800, 0x00007f1014151800 } "main" #1 prio=5 os_prio=0 cpu=28050,86ms elapsed=235051,85s tid=0x00007f1014015800 nid=0x758 runnable [0x00007f10197c4000] java.lang.Thread.State: RUNNABLE at java.net.PlainSocketImpl.socketAccept(java.base@11.0.16/Native Method) at java.net.AbstractPlainSocketImpl.accept(java.base@11.0.16/AbstractPlainSocketImpl.java:474) at java.net.ServerSocket.implAccept(java.base@11.0.16/ServerSocket.java:565) at java.net.ServerSocket.accept(java.base@11.0.16/ServerSocket.java:533) at jpwr.rt.GdhWebSocketServer.openServerSocket(GdhWebSocketServer.java:389) at jpwr.rt.GdhWebSocketServer.main(GdhWebSocketServer.java:256) "Reference Handler" #2 daemon prio=10 os_prio=0 cpu=1,09ms elapsed=235051,68s tid=0x00007f10140cb800 nid=0x767 waiting on condition [0x00007f10181e3000] java.lang.Thread.State: RUNNABLE at java.lang.ref.Reference.waitForReferencePendingList(java.base@11.0.16/Native Method) at java.lang.ref.Reference.processPendingReferences(java.base@11.0.16/Reference.java:241) at java.lang.ref.Reference$ReferenceHandler.run(java.base@11.0.16/Reference.java:213) "Finalizer" #3 daemon prio=8 os_prio=0 cpu=0,31ms elapsed=235051,68s tid=0x00007f10140cd800 nid=0x768 in Object.wait() [0x00007f0ff599e000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(java.base@11.0.16/Native Method) - waiting on <0x00000000b54193d0> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(java.base@11.0.16/ReferenceQueue.java:155) - waiting to re-lock in wait() <0x00000000b54193d0> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(java.base@11.0.16/ReferenceQueue.java:176) at java.lang.ref.Finalizer$FinalizerThread.run(java.base@11.0.16/Finalizer.java:170) "Signal Dispatcher" #4 daemon prio=9 os_prio=0 cpu=0,37ms elapsed=235051,67s tid=0x00007f10140d3000 nid=0x76b runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Service Thread" #5 daemon prio=9 os_prio=0 cpu=0,19ms elapsed=235051,67s tid=0x00007f10140d5000 nid=0x76c runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "C2 CompilerThread0" #6 daemon prio=9 os_prio=0 cpu=1570,54ms elapsed=235051,67s tid=0x00007f10140d7800 nid=0x76d waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE No compile task "C1 CompilerThread0" #7 daemon prio=9 os_prio=0 cpu=1437,99ms elapsed=235051,67s tid=0x00007f10140d9800 nid=0x76e waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE No compile task "Sweeper thread" #8 daemon prio=9 os_prio=0 cpu=0,12ms elapsed=235051,67s tid=0x00007f10140db800 nid=0x76f runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Common-Cleaner" #9 daemon prio=8 os_prio=0 cpu=157,63ms elapsed=235051,63s tid=0x00007f101411e800 nid=0x772 in Object.wait() [0x00007f0ff4aac000] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(java.base@11.0.16/Native Method) - waiting on at java.lang.ref.ReferenceQueue.remove(java.base@11.0.16/ReferenceQueue.java:155) - waiting to re-lock in wait() <0x00000000b5419d50> (a java.lang.ref.ReferenceQueue$Lock) at jdk.internal.ref.CleanerImpl.run(java.base@11.0.16/CleanerImpl.java:148) at java.lang.Thread.run(java.base@11.0.16/Thread.java:829) at jdk.internal.misc.InnocuousThread.run(java.base@11.0.16/InnocuousThread.java:161) "Thread-0" #10 prio=5 os_prio=0 cpu=4728,96ms elapsed=235051,28s tid=0x00007f101417f800 nid=0x792 runnable [0x00007f0fec6f2000] java.lang.Thread.State: RUNNABLE at jpwr.rt.Mh.outunitReceive(Native Method) at jpwr.rt.GdhWebSocketServer$MhSendThread.run(GdhWebSocketServer.java:462) "Attach Listener" #11 daemon prio=9 os_prio=0 cpu=0,67ms elapsed=232948,32s tid=0x00007f0fcc001000 nid=0xc66 waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Thread-1" #12 prio=5 os_prio=0 cpu=24901,86ms elapsed=232322,48s tid=0x00007f10140ee800 nid=0xcae runnable [0x00007f0fec4f2000] java.lang.Thread.State: RUNNABLE at java.net.SocketInputStream.socketRead0(java.base@11.0.16/Native Method) at java.net.SocketInputStream.socketRead(java.base@11.0.16/SocketInputStream.java:115) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:168) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:140) at java.io.BufferedInputStream.fill(java.base@11.0.16/BufferedInputStream.java:252) at java.io.BufferedInputStream.read(java.base@11.0.16/BufferedInputStream.java:271) - locked <0x00000000b54224c0> (a java.io.BufferedInputStream) at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:634) "Thread-6" #17 prio=5 os_prio=0 cpu=152727855,10ms elapsed=160265,94s tid=0x00007f101414b800 nid=0x2795 runnable [0x00007f0fbbffd000] java.lang.Thread.State: RUNNABLE at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:642) "Thread-14" #25 prio=5 os_prio=0 cpu=65742379,70ms elapsed=71509,96s tid=0x00007f10140f0800 nid=0x3d2f runnable [0x00007f0fec1ef000] java.lang.Thread.State: RUNNABLE at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:636) "Thread-15" #26 prio=5 os_prio=0 cpu=8719,83ms elapsed=71339,39s tid=0x00007f1014151800 nid=0x3d30 runnable [0x00007f0fbbefe000] java.lang.Thread.State: RUNNABLE at java.net.SocketInputStream.socketRead0(java.base@11.0.16/Native Method) at java.net.SocketInputStream.socketRead(java.base@11.0.16/SocketInputStream.java:115) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:168) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:140) at java.io.BufferedInputStream.fill(java.base@11.0.16/BufferedInputStream.java:252) at java.io.BufferedInputStream.read(java.base@11.0.16/BufferedInputStream.java:271) - locked <0x00000000b54861f8> (a java.io.BufferedInputStream) at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:634) "VM Thread" os_prio=0 cpu=5863,95ms elapsed=235051,70s tid=0x00007f10140c9000 nid=0x764 runnable "GC Thread#0" os_prio=0 cpu=75,98ms elapsed=235051,82s tid=0x00007f101402e800 nid=0x75d runnable "GC Thread#1" os_prio=0 cpu=74,44ms elapsed=231795,05s tid=0x00007f0fe0001000 nid=0xcb1 runnable "G1 Main Marker" os_prio=0 cpu=7,78ms elapsed=235051,82s tid=0x00007f101404f000 nid=0x75e runnable "G1 Conc#0" os_prio=0 cpu=0,09ms elapsed=235051,82s tid=0x00007f1014051000 nid=0x75f runnable "G1 Refine#0" os_prio=0 cpu=2,58ms elapsed=235051,81s tid=0x00007f1014099800 nid=0x760 runnable "G1 Young RemSet Sampling" os_prio=0 cpu=31535,19ms elapsed=235051,81s tid=0x00007f101409b800 nid=0x761 runnable "VM Periodic Task Thread" os_prio=0 cpu=110614,22ms elapsed=235051,64s tid=0x00007f101411c000 nid=0x771 waiting on condition JNI global refs: 16, weak refs: 0 pwrp@PcComp:~$ pwrp@PcComp:~$ jattach 1859 threaddump Connected to remote JVM JVM response code = 0 2023-04-21 07:41:00 Full thread dump OpenJDK 64-Bit Server VM (11.0.16+8-post-Ubuntu-0ubuntu122.04 mixed mode, sharing): Threads class SMR info: _java_thread_list=0x00007f0ff0001120, length=15, elements={ 0x00007f1014015800, 0x00007f10140cb800, 0x00007f10140cd800, 0x00007f10140d3000, 0x00007f10140d5000, 0x00007f10140d7800, 0x00007f10140d9800, 0x00007f10140db800, 0x00007f101411e800, 0x00007f101417f800, 0x00007f0fcc001000, 0x00007f10140ee800, 0x00007f101414b800, 0x00007f10140f0800, 0x00007f1014151800 } "main" #1 prio=5 os_prio=0 cpu=28058,71ms elapsed=235136,80s tid=0x00007f1014015800 nid=0x758 runnable [0x00007f10197c4000] java.lang.Thread.State: RUNNABLE at java.net.PlainSocketImpl.socketAccept(java.base@11.0.16/Native Method) at java.net.AbstractPlainSocketImpl.accept(java.base@11.0.16/AbstractPlainSocketImpl.java:474) at java.net.ServerSocket.implAccept(java.base@11.0.16/ServerSocket.java:565) at java.net.ServerSocket.accept(java.base@11.0.16/ServerSocket.java:533) at jpwr.rt.GdhWebSocketServer.openServerSocket(GdhWebSocketServer.java:389) at jpwr.rt.GdhWebSocketServer.main(GdhWebSocketServer.java:256) "Reference Handler" #2 daemon prio=10 os_prio=0 cpu=1,09ms elapsed=235136,63s tid=0x00007f10140cb800 nid=0x767 waiting on condition [0x00007f10181e3000] java.lang.Thread.State: RUNNABLE at java.lang.ref.Reference.waitForReferencePendingList(java.base@11.0.16/Native Method) at java.lang.ref.Reference.processPendingReferences(java.base@11.0.16/Reference.java:241) at java.lang.ref.Reference$ReferenceHandler.run(java.base@11.0.16/Reference.java:213) "Finalizer" #3 daemon prio=8 os_prio=0 cpu=0,31ms elapsed=235136,63s tid=0x00007f10140cd800 nid=0x768 in Object.wait() [0x00007f0ff599e000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(java.base@11.0.16/Native Method) - waiting on <0x00000000b54193d0> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(java.base@11.0.16/ReferenceQueue.java:155) - waiting to re-lock in wait() <0x00000000b54193d0> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(java.base@11.0.16/ReferenceQueue.java:176) at java.lang.ref.Finalizer$FinalizerThread.run(java.base@11.0.16/Finalizer.java:170) "Signal Dispatcher" #4 daemon prio=9 os_prio=0 cpu=0,37ms elapsed=235136,61s tid=0x00007f10140d3000 nid=0x76b runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Service Thread" #5 daemon prio=9 os_prio=0 cpu=0,19ms elapsed=235136,61s tid=0x00007f10140d5000 nid=0x76c runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "C2 CompilerThread0" #6 daemon prio=9 os_prio=0 cpu=1570,77ms elapsed=235136,61s tid=0x00007f10140d7800 nid=0x76d waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE No compile task "C1 CompilerThread0" #7 daemon prio=9 os_prio=0 cpu=1438,19ms elapsed=235136,61s tid=0x00007f10140d9800 nid=0x76e waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE No compile task "Sweeper thread" #8 daemon prio=9 os_prio=0 cpu=0,12ms elapsed=235136,61s tid=0x00007f10140db800 nid=0x76f runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Common-Cleaner" #9 daemon prio=8 os_prio=0 cpu=157,65ms elapsed=235136,58s tid=0x00007f101411e800 nid=0x772 in Object.wait() [0x00007f0ff4aac000] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(java.base@11.0.16/Native Method) - waiting on at java.lang.ref.ReferenceQueue.remove(java.base@11.0.16/ReferenceQueue.java:155) - waiting to re-lock in wait() <0x00000000b5419d50> (a java.lang.ref.ReferenceQueue$Lock) at jdk.internal.ref.CleanerImpl.run(java.base@11.0.16/CleanerImpl.java:148) at java.lang.Thread.run(java.base@11.0.16/Thread.java:829) at jdk.internal.misc.InnocuousThread.run(java.base@11.0.16/InnocuousThread.java:161) "Thread-0" #10 prio=5 os_prio=0 cpu=4730,63ms elapsed=235136,23s tid=0x00007f101417f800 nid=0x792 runnable [0x00007f0fec6f2000] java.lang.Thread.State: RUNNABLE at jpwr.rt.Mh.outunitReceive(Native Method) at jpwr.rt.GdhWebSocketServer$MhSendThread.run(GdhWebSocketServer.java:462) "Attach Listener" #11 daemon prio=9 os_prio=0 cpu=0,84ms elapsed=233033,27s tid=0x00007f0fcc001000 nid=0xc66 waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Thread-1" #12 prio=5 os_prio=0 cpu=24907,52ms elapsed=232407,43s tid=0x00007f10140ee800 nid=0xcae runnable [0x00007f0fec4f2000] java.lang.Thread.State: RUNNABLE at java.net.SocketInputStream.socketRead0(java.base@11.0.16/Native Method) at java.net.SocketInputStream.socketRead(java.base@11.0.16/SocketInputStream.java:115) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:168) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:140) at java.io.BufferedInputStream.fill(java.base@11.0.16/BufferedInputStream.java:252) at java.io.BufferedInputStream.read(java.base@11.0.16/BufferedInputStream.java:271) - locked <0x00000000b54224c0> (a java.io.BufferedInputStream) at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:634) "Thread-6" #17 prio=5 os_prio=0 cpu=152808366,09ms elapsed=160350,88s tid=0x00007f101414b800 nid=0x2795 runnable [0x00007f0fbbffd000] java.lang.Thread.State: RUNNABLE at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:642) "Thread-14" #25 prio=5 os_prio=0 cpu=65823009,80ms elapsed=71594,90s tid=0x00007f10140f0800 nid=0x3d2f runnable [0x00007f0fec1ef000] java.lang.Thread.State: RUNNABLE at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:642) "Thread-15" #26 prio=5 os_prio=0 cpu=8725,82ms elapsed=71424,33s tid=0x00007f1014151800 nid=0x3d30 runnable [0x00007f0fbbefe000] java.lang.Thread.State: RUNNABLE at java.net.SocketInputStream.socketRead0(java.base@11.0.16/Native Method) at java.net.SocketInputStream.socketRead(java.base@11.0.16/SocketInputStream.java:115) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:168) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:140) at java.io.BufferedInputStream.fill(java.base@11.0.16/BufferedInputStream.java:252) at java.io.BufferedInputStream.read(java.base@11.0.16/BufferedInputStream.java:271) - locked <0x00000000b54861f8> (a java.io.BufferedInputStream) at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:634) "VM Thread" os_prio=0 cpu=5865,69ms elapsed=235136,65s tid=0x00007f10140c9000 nid=0x764 runnable "GC Thread#0" os_prio=0 cpu=76,08ms elapsed=235136,76s tid=0x00007f101402e800 nid=0x75d runnable "GC Thread#1" os_prio=0 cpu=74,53ms elapsed=231880,00s tid=0x00007f0fe0001000 nid=0xcb1 runnable "G1 Main Marker" os_prio=0 cpu=7,78ms elapsed=235136,76s tid=0x00007f101404f000 nid=0x75e runnable "G1 Conc#0" os_prio=0 cpu=0,09ms elapsed=235136,76s tid=0x00007f1014051000 nid=0x75f runnable "G1 Refine#0" os_prio=0 cpu=2,58ms elapsed=235136,76s tid=0x00007f1014099800 nid=0x760 runnable "G1 Young RemSet Sampling" os_prio=0 cpu=31541,93ms elapsed=235136,76s tid=0x00007f101409b800 nid=0x761 runnable "VM Periodic Task Thread" os_prio=0 cpu=110626,50ms elapsed=235136,58s tid=0x00007f101411c000 nid=0x771 waiting on condition JNI global refs: 16, weak refs: 0 pwrp@PcComp:~$ jattach 1859 threaddump Connected to remote JVM JVM response code = 0 2023-04-21 07:41:17 Full thread dump OpenJDK 64-Bit Server VM (11.0.16+8-post-Ubuntu-0ubuntu122.04 mixed mode, sharing): Threads class SMR info: _java_thread_list=0x00007f0ff0001120, length=15, elements={ 0x00007f1014015800, 0x00007f10140cb800, 0x00007f10140cd800, 0x00007f10140d3000, 0x00007f10140d5000, 0x00007f10140d7800, 0x00007f10140d9800, 0x00007f10140db800, 0x00007f101411e800, 0x00007f101417f800, 0x00007f0fcc001000, 0x00007f10140ee800, 0x00007f101414b800, 0x00007f10140f0800, 0x00007f1014151800 } "main" #1 prio=5 os_prio=0 cpu=28060,14ms elapsed=235153,85s tid=0x00007f1014015800 nid=0x758 runnable [0x00007f10197c4000] java.lang.Thread.State: RUNNABLE at java.net.PlainSocketImpl.socketAccept(java.base@11.0.16/Native Method) at java.net.AbstractPlainSocketImpl.accept(java.base@11.0.16/AbstractPlainSocketImpl.java:474) at java.net.ServerSocket.implAccept(java.base@11.0.16/ServerSocket.java:565) at java.net.ServerSocket.accept(java.base@11.0.16/ServerSocket.java:533) at jpwr.rt.GdhWebSocketServer.openServerSocket(GdhWebSocketServer.java:389) at jpwr.rt.GdhWebSocketServer.main(GdhWebSocketServer.java:256) "Reference Handler" #2 daemon prio=10 os_prio=0 cpu=1,09ms elapsed=235153,68s tid=0x00007f10140cb800 nid=0x767 waiting on condition [0x00007f10181e3000] java.lang.Thread.State: RUNNABLE at java.lang.ref.Reference.waitForReferencePendingList(java.base@11.0.16/Native Method) at java.lang.ref.Reference.processPendingReferences(java.base@11.0.16/Reference.java:241) at java.lang.ref.Reference$ReferenceHandler.run(java.base@11.0.16/Reference.java:213) "Finalizer" #3 daemon prio=8 os_prio=0 cpu=0,31ms elapsed=235153,68s tid=0x00007f10140cd800 nid=0x768 in Object.wait() [0x00007f0ff599e000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(java.base@11.0.16/Native Method) - waiting on <0x00000000b54193d0> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(java.base@11.0.16/ReferenceQueue.java:155) - waiting to re-lock in wait() <0x00000000b54193d0> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(java.base@11.0.16/ReferenceQueue.java:176) at java.lang.ref.Finalizer$FinalizerThread.run(java.base@11.0.16/Finalizer.java:170) "Signal Dispatcher" #4 daemon prio=9 os_prio=0 cpu=0,37ms elapsed=235153,67s tid=0x00007f10140d3000 nid=0x76b runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Service Thread" #5 daemon prio=9 os_prio=0 cpu=0,19ms elapsed=235153,67s tid=0x00007f10140d5000 nid=0x76c runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "C2 CompilerThread0" #6 daemon prio=9 os_prio=0 cpu=1570,83ms elapsed=235153,67s tid=0x00007f10140d7800 nid=0x76d waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE No compile task "C1 CompilerThread0" #7 daemon prio=9 os_prio=0 cpu=1438,23ms elapsed=235153,67s tid=0x00007f10140d9800 nid=0x76e waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE No compile task "Sweeper thread" #8 daemon prio=9 os_prio=0 cpu=0,12ms elapsed=235153,67s tid=0x00007f10140db800 nid=0x76f runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Common-Cleaner" #9 daemon prio=8 os_prio=0 cpu=157,65ms elapsed=235153,63s tid=0x00007f101411e800 nid=0x772 in Object.wait() [0x00007f0ff4aac000] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(java.base@11.0.16/Native Method) - waiting on at java.lang.ref.ReferenceQueue.remove(java.base@11.0.16/ReferenceQueue.java:155) - waiting to re-lock in wait() <0x00000000b5419d50> (a java.lang.ref.ReferenceQueue$Lock) at jdk.internal.ref.CleanerImpl.run(java.base@11.0.16/CleanerImpl.java:148) at java.lang.Thread.run(java.base@11.0.16/Thread.java:829) at jdk.internal.misc.InnocuousThread.run(java.base@11.0.16/InnocuousThread.java:161) "Thread-0" #10 prio=5 os_prio=0 cpu=4730,92ms elapsed=235153,28s tid=0x00007f101417f800 nid=0x792 runnable [0x00007f0fec6f2000] java.lang.Thread.State: RUNNABLE at jpwr.rt.Mh.outunitReceive(Native Method) at jpwr.rt.GdhWebSocketServer$MhSendThread.run(GdhWebSocketServer.java:462) "Attach Listener" #11 daemon prio=9 os_prio=0 cpu=0,96ms elapsed=233050,32s tid=0x00007f0fcc001000 nid=0xc66 waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Thread-1" #12 prio=5 os_prio=0 cpu=24908,70ms elapsed=232424,48s tid=0x00007f10140ee800 nid=0xcae runnable [0x00007f0fec4f2000] java.lang.Thread.State: RUNNABLE at java.net.SocketInputStream.socketRead0(java.base@11.0.16/Native Method) at java.net.SocketInputStream.socketRead(java.base@11.0.16/SocketInputStream.java:115) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:168) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:140) at java.io.BufferedInputStream.fill(java.base@11.0.16/BufferedInputStream.java:252) at java.io.BufferedInputStream.read(java.base@11.0.16/BufferedInputStream.java:271) - locked <0x00000000b54224c0> (a java.io.BufferedInputStream) at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:634) "Thread-6" #17 prio=5 os_prio=0 cpu=152824532,94ms elapsed=160367,94s tid=0x00007f101414b800 nid=0x2795 runnable [0x00007f0fbbffd000] java.lang.Thread.State: RUNNABLE at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:636) "Thread-14" #25 prio=5 os_prio=0 cpu=65839201,98ms elapsed=71611,95s tid=0x00007f10140f0800 nid=0x3d2f runnable [0x00007f0fec1ef000] java.lang.Thread.State: RUNNABLE at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:642) "Thread-15" #26 prio=5 os_prio=0 cpu=8727,12ms elapsed=71441,38s tid=0x00007f1014151800 nid=0x3d30 runnable [0x00007f0fbbefe000] java.lang.Thread.State: RUNNABLE at java.net.SocketInputStream.socketRead0(java.base@11.0.16/Native Method) at java.net.SocketInputStream.socketRead(java.base@11.0.16/SocketInputStream.java:115) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:168) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:140) at java.io.BufferedInputStream.fill(java.base@11.0.16/BufferedInputStream.java:252) at java.io.BufferedInputStream.read(java.base@11.0.16/BufferedInputStream.java:271) - locked <0x00000000b54861f8> (a java.io.BufferedInputStream) at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:634) "VM Thread" os_prio=0 cpu=5866,49ms elapsed=235153,70s tid=0x00007f10140c9000 nid=0x764 runnable "GC Thread#0" os_prio=0 cpu=76,14ms elapsed=235153,81s tid=0x00007f101402e800 nid=0x75d runnable "GC Thread#1" os_prio=0 cpu=74,61ms elapsed=231897,05s tid=0x00007f0fe0001000 nid=0xcb1 runnable "G1 Main Marker" os_prio=0 cpu=7,78ms elapsed=235153,81s tid=0x00007f101404f000 nid=0x75e runnable "G1 Conc#0" os_prio=0 cpu=0,09ms elapsed=235153,81s tid=0x00007f1014051000 nid=0x75f runnable "G1 Refine#0" os_prio=0 cpu=2,58ms elapsed=235153,81s tid=0x00007f1014099800 nid=0x760 runnable "G1 Young RemSet Sampling" os_prio=0 cpu=31543,08ms elapsed=235153,81s tid=0x00007f101409b800 nid=0x761 runnable "VM Periodic Task Thread" os_prio=0 cpu=110628,84ms elapsed=235153,63s tid=0x00007f101411c000 nid=0x771 waiting on condition JNI global refs: 16, weak refs: 0 pwrp@PcComp:~$ jattach 1859 threaddump Connected to remote JVM JVM response code = 0 2023-04-21 07:41:27 Full thread dump OpenJDK 64-Bit Server VM (11.0.16+8-post-Ubuntu-0ubuntu122.04 mixed mode, sharing): Threads class SMR info: _java_thread_list=0x00007f0ff0001120, length=15, elements={ 0x00007f1014015800, 0x00007f10140cb800, 0x00007f10140cd800, 0x00007f10140d3000, 0x00007f10140d5000, 0x00007f10140d7800, 0x00007f10140d9800, 0x00007f10140db800, 0x00007f101411e800, 0x00007f101417f800, 0x00007f0fcc001000, 0x00007f10140ee800, 0x00007f101414b800, 0x00007f10140f0800, 0x00007f1014151800 } "main" #1 prio=5 os_prio=0 cpu=28061,06ms elapsed=235163,85s tid=0x00007f1014015800 nid=0x758 runnable [0x00007f10197c4000] java.lang.Thread.State: RUNNABLE at java.net.PlainSocketImpl.socketAccept(java.base@11.0.16/Native Method) at java.net.AbstractPlainSocketImpl.accept(java.base@11.0.16/AbstractPlainSocketImpl.java:474) at java.net.ServerSocket.implAccept(java.base@11.0.16/ServerSocket.java:565) at java.net.ServerSocket.accept(java.base@11.0.16/ServerSocket.java:533) at jpwr.rt.GdhWebSocketServer.openServerSocket(GdhWebSocketServer.java:389) at jpwr.rt.GdhWebSocketServer.main(GdhWebSocketServer.java:256) "Reference Handler" #2 daemon prio=10 os_prio=0 cpu=1,09ms elapsed=235163,68s tid=0x00007f10140cb800 nid=0x767 waiting on condition [0x00007f10181e3000] java.lang.Thread.State: RUNNABLE at java.lang.ref.Reference.waitForReferencePendingList(java.base@11.0.16/Native Method) at java.lang.ref.Reference.processPendingReferences(java.base@11.0.16/Reference.java:241) at java.lang.ref.Reference$ReferenceHandler.run(java.base@11.0.16/Reference.java:213) "Finalizer" #3 daemon prio=8 os_prio=0 cpu=0,31ms elapsed=235163,68s tid=0x00007f10140cd800 nid=0x768 in Object.wait() [0x00007f0ff599e000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(java.base@11.0.16/Native Method) - waiting on <0x00000000b54193d0> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(java.base@11.0.16/ReferenceQueue.java:155) - waiting to re-lock in wait() <0x00000000b54193d0> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(java.base@11.0.16/ReferenceQueue.java:176) at java.lang.ref.Finalizer$FinalizerThread.run(java.base@11.0.16/Finalizer.java:170) "Signal Dispatcher" #4 daemon prio=9 os_prio=0 cpu=0,37ms elapsed=235163,67s tid=0x00007f10140d3000 nid=0x76b runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Service Thread" #5 daemon prio=9 os_prio=0 cpu=0,19ms elapsed=235163,67s tid=0x00007f10140d5000 nid=0x76c runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "C2 CompilerThread0" #6 daemon prio=9 os_prio=0 cpu=1570,85ms elapsed=235163,67s tid=0x00007f10140d7800 nid=0x76d waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE No compile task "C1 CompilerThread0" #7 daemon prio=9 os_prio=0 cpu=1438,26ms elapsed=235163,67s tid=0x00007f10140d9800 nid=0x76e waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE No compile task "Sweeper thread" #8 daemon prio=9 os_prio=0 cpu=0,12ms elapsed=235163,67s tid=0x00007f10140db800 nid=0x76f runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Common-Cleaner" #9 daemon prio=8 os_prio=0 cpu=157,65ms elapsed=235163,63s tid=0x00007f101411e800 nid=0x772 in Object.wait() [0x00007f0ff4aac000] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(java.base@11.0.16/Native Method) - waiting on at java.lang.ref.ReferenceQueue.remove(java.base@11.0.16/ReferenceQueue.java:155) - waiting to re-lock in wait() <0x00000000b5419d50> (a java.lang.ref.ReferenceQueue$Lock) at jdk.internal.ref.CleanerImpl.run(java.base@11.0.16/CleanerImpl.java:148) at java.lang.Thread.run(java.base@11.0.16/Thread.java:829) at jdk.internal.misc.InnocuousThread.run(java.base@11.0.16/InnocuousThread.java:161) "Thread-0" #10 prio=5 os_prio=0 cpu=4731,08ms elapsed=235163,28s tid=0x00007f101417f800 nid=0x792 runnable [0x00007f0fec6f2000] java.lang.Thread.State: RUNNABLE at jpwr.rt.Mh.outunitReceive(Native Method) at jpwr.rt.GdhWebSocketServer$MhSendThread.run(GdhWebSocketServer.java:462) "Attach Listener" #11 daemon prio=9 os_prio=0 cpu=1,09ms elapsed=233060,32s tid=0x00007f0fcc001000 nid=0xc66 waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Thread-1" #12 prio=5 os_prio=0 cpu=24909,32ms elapsed=232434,48s tid=0x00007f10140ee800 nid=0xcae runnable [0x00007f0fec4f2000] java.lang.Thread.State: RUNNABLE at java.net.SocketInputStream.socketRead0(java.base@11.0.16/Native Method) at java.net.SocketInputStream.socketRead(java.base@11.0.16/SocketInputStream.java:115) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:168) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:140) at java.io.BufferedInputStream.fill(java.base@11.0.16/BufferedInputStream.java:252) at java.io.BufferedInputStream.read(java.base@11.0.16/BufferedInputStream.java:271) - locked <0x00000000b54224c0> (a java.io.BufferedInputStream) at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:634) "Thread-6" #17 prio=5 os_prio=0 cpu=152834015,39ms elapsed=160377,94s tid=0x00007f101414b800 nid=0x2795 runnable [0x00007f0fbbffd000] java.lang.Thread.State: RUNNABLE at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:636) "Thread-14" #25 prio=5 os_prio=0 cpu=65848698,34ms elapsed=71621,96s tid=0x00007f10140f0800 nid=0x3d2f runnable [0x00007f0fec1ef000] java.lang.Thread.State: RUNNABLE at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:636) "Thread-15" #26 prio=5 os_prio=0 cpu=8727,84ms elapsed=71451,39s tid=0x00007f1014151800 nid=0x3d30 runnable [0x00007f0fbbefe000] java.lang.Thread.State: RUNNABLE at java.net.SocketInputStream.socketRead0(java.base@11.0.16/Native Method) at java.net.SocketInputStream.socketRead(java.base@11.0.16/SocketInputStream.java:115) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:168) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:140) at java.io.BufferedInputStream.fill(java.base@11.0.16/BufferedInputStream.java:252) at java.io.BufferedInputStream.read(java.base@11.0.16/BufferedInputStream.java:271) - locked <0x00000000b54861f8> (a java.io.BufferedInputStream) at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:634) "VM Thread" os_prio=0 cpu=5867,31ms elapsed=235163,70s tid=0x00007f10140c9000 nid=0x764 runnable "GC Thread#0" os_prio=0 cpu=76,19ms elapsed=235163,82s tid=0x00007f101402e800 nid=0x75d runnable "GC Thread#1" os_prio=0 cpu=74,67ms elapsed=231907,05s tid=0x00007f0fe0001000 nid=0xcb1 runnable "G1 Main Marker" os_prio=0 cpu=7,78ms elapsed=235163,82s tid=0x00007f101404f000 nid=0x75e runnable "G1 Conc#0" os_prio=0 cpu=0,09ms elapsed=235163,82s tid=0x00007f1014051000 nid=0x75f runnable "G1 Refine#0" os_prio=0 cpu=2,58ms elapsed=235163,81s tid=0x00007f1014099800 nid=0x760 runnable "G1 Young RemSet Sampling" os_prio=0 cpu=31543,83ms elapsed=235163,81s tid=0x00007f101409b800 nid=0x761 runnable "VM Periodic Task Thread" os_prio=0 cpu=110630,14ms elapsed=235163,64s tid=0x00007f101411c000 nid=0x771 waiting on condition JNI global refs: 16, weak refs: 0 pwrp@PcComp:~$ jattach 1859 threaddump Connected to remote JVM JVM response code = 0 2023-04-21 07:41:39 Full thread dump OpenJDK 64-Bit Server VM (11.0.16+8-post-Ubuntu-0ubuntu122.04 mixed mode, sharing): Threads class SMR info: _java_thread_list=0x00007f0ff0001120, length=15, elements={ 0x00007f1014015800, 0x00007f10140cb800, 0x00007f10140cd800, 0x00007f10140d3000, 0x00007f10140d5000, 0x00007f10140d7800, 0x00007f10140d9800, 0x00007f10140db800, 0x00007f101411e800, 0x00007f101417f800, 0x00007f0fcc001000, 0x00007f10140ee800, 0x00007f101414b800, 0x00007f10140f0800, 0x00007f1014151800 } "main" #1 prio=5 os_prio=0 cpu=28062,12ms elapsed=235175,79s tid=0x00007f1014015800 nid=0x758 runnable [0x00007f10197c4000] java.lang.Thread.State: RUNNABLE at java.net.PlainSocketImpl.socketAccept(java.base@11.0.16/Native Method) at java.net.AbstractPlainSocketImpl.accept(java.base@11.0.16/AbstractPlainSocketImpl.java:474) at java.net.ServerSocket.implAccept(java.base@11.0.16/ServerSocket.java:565) at java.net.ServerSocket.accept(java.base@11.0.16/ServerSocket.java:533) at jpwr.rt.GdhWebSocketServer.openServerSocket(GdhWebSocketServer.java:389) at jpwr.rt.GdhWebSocketServer.main(GdhWebSocketServer.java:256) "Reference Handler" #2 daemon prio=10 os_prio=0 cpu=1,09ms elapsed=235175,62s tid=0x00007f10140cb800 nid=0x767 waiting on condition [0x00007f10181e3000] java.lang.Thread.State: RUNNABLE at java.lang.ref.Reference.waitForReferencePendingList(java.base@11.0.16/Native Method) at java.lang.ref.Reference.processPendingReferences(java.base@11.0.16/Reference.java:241) at java.lang.ref.Reference$ReferenceHandler.run(java.base@11.0.16/Reference.java:213) "Finalizer" #3 daemon prio=8 os_prio=0 cpu=0,31ms elapsed=235175,62s tid=0x00007f10140cd800 nid=0x768 in Object.wait() [0x00007f0ff599e000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(java.base@11.0.16/Native Method) - waiting on <0x00000000b54193d0> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(java.base@11.0.16/ReferenceQueue.java:155) - waiting to re-lock in wait() <0x00000000b54193d0> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(java.base@11.0.16/ReferenceQueue.java:176) at java.lang.ref.Finalizer$FinalizerThread.run(java.base@11.0.16/Finalizer.java:170) "Signal Dispatcher" #4 daemon prio=9 os_prio=0 cpu=0,37ms elapsed=235175,61s tid=0x00007f10140d3000 nid=0x76b runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Service Thread" #5 daemon prio=9 os_prio=0 cpu=0,19ms elapsed=235175,61s tid=0x00007f10140d5000 nid=0x76c runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "C2 CompilerThread0" #6 daemon prio=9 os_prio=0 cpu=1570,88ms elapsed=235175,61s tid=0x00007f10140d7800 nid=0x76d waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE No compile task "C1 CompilerThread0" #7 daemon prio=9 os_prio=0 cpu=1438,29ms elapsed=235175,61s tid=0x00007f10140d9800 nid=0x76e waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE No compile task "Sweeper thread" #8 daemon prio=9 os_prio=0 cpu=0,12ms elapsed=235175,61s tid=0x00007f10140db800 nid=0x76f runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Common-Cleaner" #9 daemon prio=8 os_prio=0 cpu=157,67ms elapsed=235175,57s tid=0x00007f101411e800 nid=0x772 in Object.wait() [0x00007f0ff4aac000] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(java.base@11.0.16/Native Method) - waiting on at java.lang.ref.ReferenceQueue.remove(java.base@11.0.16/ReferenceQueue.java:155) - waiting to re-lock in wait() <0x00000000b5419d50> (a java.lang.ref.ReferenceQueue$Lock) at jdk.internal.ref.CleanerImpl.run(java.base@11.0.16/CleanerImpl.java:148) at java.lang.Thread.run(java.base@11.0.16/Thread.java:829) at jdk.internal.misc.InnocuousThread.run(java.base@11.0.16/InnocuousThread.java:161) "Thread-0" #10 prio=5 os_prio=0 cpu=4731,27ms elapsed=235175,22s tid=0x00007f101417f800 nid=0x792 sleeping [0x00007f0fec6f2000] java.lang.Thread.State: TIMED_WAITING (sleeping) at java.lang.Thread.sleep(java.base@11.0.16/Native Method) at jpwr.rt.GdhWebSocketServer$MhSendThread.run(GdhWebSocketServer.java:464) "Attach Listener" #11 daemon prio=9 os_prio=0 cpu=1,21ms elapsed=233072,26s tid=0x00007f0fcc001000 nid=0xc66 waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Thread-1" #12 prio=5 os_prio=0 cpu=24909,99ms elapsed=232446,42s tid=0x00007f10140ee800 nid=0xcae runnable [0x00007f0fec4f2000] java.lang.Thread.State: RUNNABLE at java.net.SocketInputStream.socketRead0(java.base@11.0.16/Native Method) at java.net.SocketInputStream.socketRead(java.base@11.0.16/SocketInputStream.java:115) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:168) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:140) at java.io.BufferedInputStream.fill(java.base@11.0.16/BufferedInputStream.java:252) at java.io.BufferedInputStream.read(java.base@11.0.16/BufferedInputStream.java:271) - locked <0x00000000b54224c0> (a java.io.BufferedInputStream) at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:634) "Thread-6" #17 prio=5 os_prio=0 cpu=152845332,85ms elapsed=160389,88s tid=0x00007f101414b800 nid=0x2795 runnable [0x00007f0fbbffd000] java.lang.Thread.State: RUNNABLE at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:636) "Thread-14" #25 prio=5 os_prio=0 cpu=65860025,83ms elapsed=71633,89s tid=0x00007f10140f0800 nid=0x3d2f runnable [0x00007f0fec1ef000] java.lang.Thread.State: RUNNABLE at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:642) "Thread-15" #26 prio=5 os_prio=0 cpu=8728,66ms elapsed=71463,32s tid=0x00007f1014151800 nid=0x3d30 runnable [0x00007f0fbbefe000] java.lang.Thread.State: RUNNABLE at java.net.SocketInputStream.socketRead0(java.base@11.0.16/Native Method) at java.net.SocketInputStream.socketRead(java.base@11.0.16/SocketInputStream.java:115) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:168) at java.net.SocketInputStream.read(java.base@11.0.16/SocketInputStream.java:140) at java.io.BufferedInputStream.fill(java.base@11.0.16/BufferedInputStream.java:252) at java.io.BufferedInputStream.read(java.base@11.0.16/BufferedInputStream.java:271) - locked <0x00000000b54861f8> (a java.io.BufferedInputStream) at jpwr.rt.GdhWebSocketServer$GdhThread.run(GdhWebSocketServer.java:634) "VM Thread" os_prio=0 cpu=5868,13ms elapsed=235175,64s tid=0x00007f10140c9000 nid=0x764 runnable "GC Thread#0" os_prio=0 cpu=76,26ms elapsed=235175,75s tid=0x00007f101402e800 nid=0x75d runnable "GC Thread#1" os_prio=0 cpu=74,73ms elapsed=231918,99s tid=0x00007f0fe0001000 nid=0xcb1 runnable "G1 Main Marker" os_prio=0 cpu=7,78ms elapsed=235175,75s tid=0x00007f101404f000 nid=0x75e runnable "G1 Conc#0" os_prio=0 cpu=0,09ms elapsed=235175,75s tid=0x00007f1014051000 nid=0x75f runnable "G1 Refine#0" os_prio=0 cpu=2,58ms elapsed=235175,75s tid=0x00007f1014099800 nid=0x760 runnable "G1 Young RemSet Sampling" os_prio=0 cpu=31544,71ms elapsed=235175,75s tid=0x00007f101409b800 nid=0x761 runnable "VM Periodic Task Thread" os_prio=0 cpu=110631,66ms elapsed=235175,57s tid=0x00007f101411c000 nid=0x771 waiting on condition JNI global refs: 16, weak refs: 0