Re: Can't build ApacheDS with Java 8, because of MINA

Tue, 09 Aug 2022 22:20:47 -0700 

Correction, this is not a MINA issue, as we built it with the proper tag:

<!-- use JDK8 compilation for JDK9+ compiler -->
  <profile>
    <id>java-8-compilation</id>
      <activation>
        <jdk>[9,)</jdk>
      </activation>
      <properties>
        <maven.compiler.release>8</maven.compiler.release>
      </properties>
    </profile>
...

We don't have such a profile in the LDAP API, and we need to get it fixed...

On 10/08/2022 07:11, Emmanuel Lécharny wrote:

Ok, I think I found the reason.
There were some changes made in the ByteBuffer class in Java 9 (and forward) which leads to some error in Apache DS code. 

In MINA, I get an exception like:
java.lang.NoSuchMethodError: java.nio.ByteBuffer.mark()Ljava/nio/ByteBuffer;
which is badly handled (basically, it ends in an infinite loop). The LdapProtocolHandler exceptionCaught method tries to write a NoticeOfDisconnect to the remote peer, but that does not ends well: we get an exception that is caught and... 

     /**
      * {@inheritDoc}
      */
     @Override
     public void exceptionCaught( IoSession session, Throwable cause )
     {
        if ( cause.getCause() instanceof ResponseCarryingMessageException ) 
         {
            ResponseCarryingMessageException rcme = ( ResponseCarryingMessageException ) cause.getCause(); 

             if ( rcme.getResponse() != null )
             {
                 session.write( rcme.getResponse() );
                 return;
             }
         }
        LOG.warn( "Unexpected exception forcing session to close: sending disconnect notice to client.", cause ); 

         session.write( NoticeOfDisconnect.PROTOCOLERROR );
         session.closeOnFlush();
        //LdapSession ldapSession = this.ldapServer.getLdapSessionManager().removeLdapSession( session ); 
         //cleanUpSession( ldapSession );
     }

This blog post summarize the root cause:

https://www.morling.dev/blog/bytebuffer-and-the-dreaded-nosuchmethoderror/

This may require a MINA fix to get it working. I will do that.

On 10/08/2022 06:23, Emmanuel Lécharny wrote:

Hi,
since I have bumped up the LDAP API version to 2.1.1, the tests are blocking on DirectoryServiceAnnotationTest when ran with Java 8. 

It's passing with Java 11.
Here is the thread dump I get (see further down), it seems to block on surfire trying to read some stream. The surefire plugin in use is 2.0.0-M7 instead of 2.0.0-M5. 

I'm investigating.


2022-08-10 06:16:01
Full thread dump OpenJDK 64-Bit Server VM (25.312-b07 mixed mode):
"fork-1-err-thread" #509 daemon prio=5 os_prio=31 tid=0x00007ff29e08a000 nid=0x9253 runnable [0x0000700005edd000] 
    java.lang.Thread.State: RUNNABLE
     at java.io.FileInputStream.readBytes(Native Method)
     at java.io.FileInputStream.read(FileInputStream.java:255)
     at java.io.BufferedInputStream.read1(BufferedInputStream.java:284)
     at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
     - locked <0x00000006c51b5c58> (a java.lang.UNIXProcess$ProcessPipeInputStream) 
     at java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
     at java.io.BufferedInputStream.read1(BufferedInputStream.java:286)
     at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
     - locked <0x00000006c51c8078> (a java.io.BufferedInputStream)
     at org.apache.maven.surefire.api.util.internal.Channels$3.readImpl(Channels.java:214)      at org.apache.maven.surefire.api.util.internal.AbstractNoninterruptibleReadableChannel.read(AbstractNoninterruptibleReadableChannel.java:54) 
     at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:274)
     at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:326)
     at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
     - locked <0x00000006c561f6f8> (a sun.nio.cs.StreamDecoder)
     at java.io.Reader.read(Reader.java:100)
     at java.util.Scanner.readInput(Scanner.java:804)
     at java.util.Scanner.findWithinHorizon(Scanner.java:1685)
     at java.util.Scanner.hasNextLine(Scanner.java:1500)
     at org.apache.maven.surefire.extensions.util.LineConsumerThread.run(LineConsumerThread.java:67)
"fork-1-event-thread" #508 daemon prio=5 os_prio=31 tid=0x00007ff29e089000 nid=0x715b runnable [0x0000700005dda000] 
    java.lang.Thread.State: RUNNABLE
     at java.io.FileInputStream.readBytes(Native Method)
     at java.io.FileInputStream.read(FileInputStream.java:255)
     at java.io.BufferedInputStream.read1(BufferedInputStream.java:284)
     at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
     - locked <0x00000006c51b3b98> (a java.lang.UNIXProcess$ProcessPipeInputStream) 
     at java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
     at java.io.BufferedInputStream.read1(BufferedInputStream.java:286)
     at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
     - locked <0x00000006c51b8028> (a java.io.BufferedInputStream)
     at org.apache.maven.surefire.api.util.internal.Channels$3.readImpl(Channels.java:214)      at org.apache.maven.surefire.api.util.internal.AbstractNoninterruptibleReadableChannel.read(AbstractNoninterruptibleReadableChannel.java:54)      at org.apache.maven.plugin.surefire.extensions.EventConsumerThread.read(EventConsumerThread.java:223)      at org.apache.maven.plugin.surefire.extensions.EventConsumerThread.decode(EventConsumerThread.java:150)      at org.apache.maven.plugin.surefire.extensions.EventConsumerThread.run(EventConsumerThread.java:113)
"std-in-fork-1" #507 daemon prio=5 os_prio=31 tid=0x00007ff27e672000 nid=0x6e13 waiting on condition [0x0000700005cd7000] 
    java.lang.Thread.State: WAITING (parking)
     at sun.misc.Unsafe.park(Native Method)
     - parking to wait for  <0x00000006c503d6b8> (a java.util.concurrent.Semaphore$NonfairSync) 
     at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
     at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)      at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(AbstractQueuedSynchronizer.java:997)      at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1304) 
     at java.util.concurrent.Semaphore.acquire(Semaphore.java:312)
     at org.apache.maven.plugin.surefire.booterclient.lazytestprovider.TestLessInputStream.awaitNextCommand(TestLessInputStream.java:164)      at org.apache.maven.plugin.surefire.booterclient.lazytestprovider.TestLessInputStream.beforeNextCommand(TestLessInputStream.java:136)      at org.apache.maven.plugin.surefire.booterclient.lazytestprovider.DefaultCommandReader.readNextCommand(DefaultCommandReader.java:81)      at org.apache.maven.plugin.surefire.extensions.StreamFeeder.run(StreamFeeder.java:86)
"ThreadedStreamConsumer" #505 daemon prio=5 os_prio=31 tid=0x00007ff28bacd800 nid=0x6a37 waiting on condition [0x0000700005bd4000] 
    java.lang.Thread.State: WAITING (parking)
     at sun.misc.Unsafe.park(Native Method)
     - parking to wait for  <0x00000006c519f448> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject) 
     at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
     at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)      at java.util.concurrent.ArrayBlockingQueue.take(ArrayBlockingQueue.java:403)      at org.apache.maven.plugin.surefire.booterclient.output.ThreadedStreamConsumer$Pumper.run(ThreadedStreamConsumer.java:86) 
     at java.lang.Thread.run(Thread.java:748)
"ping-timer-10s" #503 daemon prio=5 os_prio=31 tid=0x00007ff27e671000 nid=0x75b3 waiting on condition [0x00007000055c2000] 
    java.lang.Thread.State: TIMED_WAITING (parking)
     at sun.misc.Unsafe.park(Native Method)
     - parking to wait for  <0x00000006c50388f0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)      at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)      at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)      at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)      at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)      at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
     at java.lang.Thread.run(Thread.java:748)
"timeout-check-timer" #501 daemon prio=5 os_prio=31 tid=0x00007ff2ceabf800 nid=0x5d63 waiting on condition [0x00007000052b9000] 
    java.lang.Thread.State: TIMED_WAITING (parking)
     at sun.misc.Unsafe.park(Native Method)
     - parking to wait for  <0x00000006c503ce08> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)      at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)      at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)      at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)      at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)      at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
     at java.lang.Thread.run(Thread.java:748)
"process reaper" #35 daemon prio=10 os_prio=31 tid=0x00007ff2ee79e800 nid=0x7203 runnable [0x0000700004231000] 
    java.lang.Thread.State: RUNNABLE
     at java.lang.UNIXProcess.waitForProcessExit(Native Method)
     at java.lang.UNIXProcess.lambda$initStreams$3(UNIXProcess.java:289)
     at java.lang.UNIXProcess$$Lambda$334/1241181543.run(Unknown Source)
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
     at java.lang.Thread.run(Thread.java:748)
"resolver-5" #29 daemon prio=5 os_prio=31 tid=0x00007ff288d97000 nid=0x6c03 waiting on condition [0x0000700005ad1000] 
    java.lang.Thread.State: WAITING (parking)
     at sun.misc.Unsafe.park(Native Method)
     - parking to wait for  <0x00000006f4d7b468> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject) 
     at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
     at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)      at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)      at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
     at java.lang.Thread.run(Thread.java:748)
"resolver-4" #28 daemon prio=5 os_prio=31 tid=0x00007ff288d96800 nid=0x6b03 waiting on condition [0x00007000059ce000] 
    java.lang.Thread.State: WAITING (parking)
     at sun.misc.Unsafe.park(Native Method)
     - parking to wait for  <0x00000006f4d7b468> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject) 
     at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
     at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)      at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)      at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
     at java.lang.Thread.run(Thread.java:748)
"resolver-3" #17 daemon prio=5 os_prio=31 tid=0x00007ff2e885a800 nid=0x3b0b waiting on condition [0x0000700004ead000] 
    java.lang.Thread.State: WAITING (parking)
     at sun.misc.Unsafe.park(Native Method)
     - parking to wait for  <0x00000006f4d7b468> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject) 
     at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
     at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)      at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)      at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
     at java.lang.Thread.run(Thread.java:748)
"resolver-2" #15 daemon prio=5 os_prio=31 tid=0x00007ff288649000 nid=0x5e03 waiting on condition [0x0000700004daa000] 
    java.lang.Thread.State: WAITING (parking)
     at sun.misc.Unsafe.park(Native Method)
     - parking to wait for  <0x00000006f4d7b468> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject) 
     at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
     at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)      at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)      at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
     at java.lang.Thread.run(Thread.java:748)
"resolver-1" #13 daemon prio=5 os_prio=31 tid=0x00007ff2cf114800 nid=0xa003 waiting on condition [0x0000700004ba4000] 
    java.lang.Thread.State: WAITING (parking)
     at sun.misc.Unsafe.park(Native Method)
     - parking to wait for  <0x00000006f4d7b468> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject) 
     at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
     at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)      at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)      at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
     at java.lang.Thread.run(Thread.java:748)
"Service Thread" #10 daemon prio=9 os_prio=31 tid=0x00007ff310016000 nid=0xa403 runnable [0x0000000000000000] 
    java.lang.Thread.State: RUNNABLE
"C1 CompilerThread3" #9 daemon prio=9 os_prio=31 tid=0x00007ff30f03e000 nid=0xa603 waiting on condition [0x0000000000000000] 
    java.lang.Thread.State: RUNNABLE
"C2 CompilerThread2" #8 daemon prio=9 os_prio=31 tid=0x00007ff30f03d000 nid=0xa803 waiting on condition [0x0000000000000000] 
    java.lang.Thread.State: RUNNABLE
"C2 CompilerThread1" #7 daemon prio=9 os_prio=31 tid=0x00007ff30f02f800 nid=0x5a03 waiting on condition [0x0000000000000000] 
    java.lang.Thread.State: RUNNABLE
"C2 CompilerThread0" #6 daemon prio=9 os_prio=31 tid=0x00007ff30f048800 nid=0x5803 waiting on condition [0x0000000000000000] 
    java.lang.Thread.State: RUNNABLE
"Signal Dispatcher" #5 daemon prio=9 os_prio=31 tid=0x00007ff30e06d000 nid=0x5603 waiting on condition [0x0000000000000000] 
    java.lang.Thread.State: RUNNABLE
"Surrogate Locker Thread (Concurrent GC)" #4 daemon prio=9 os_prio=31 tid=0x00007ff30e06c000 nid=0x3f03 waiting on condition [0x0000000000000000] 
    java.lang.Thread.State: RUNNABLE
"Finalizer" #3 daemon prio=8 os_prio=31 tid=0x00007ff30f028000 nid=0x4503 in Object.wait() [0x0000700004183000] 
    java.lang.Thread.State: WAITING (on object monitor)
     at java.lang.Object.wait(Native Method)
     at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:144)
     - locked <0x00000006f41c4068> (a java.lang.ref.ReferenceQueue$Lock)
     at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:165)
     at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:216)
"Reference Handler" #2 daemon prio=10 os_prio=31 tid=0x00007ff30f025000 nid=0x3803 in Object.wait() [0x0000700004080000] 
    java.lang.Thread.State: WAITING (on object monitor)
     at java.lang.Object.wait(Native Method)
     at java.lang.Object.wait(Object.java:502)
     at java.lang.ref.Reference.tryHandlePending(Reference.java:191)
     - locked <0x00000006f46c5710> (a java.lang.ref.Reference$Lock)
     at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:153)
"main" #1 prio=5 os_prio=31 tid=0x00007ff30e00f000 nid=0x1d03 in Object.wait() [0x000070000304f000] 
    java.lang.Thread.State: WAITING (on object monitor)
     at java.lang.Object.wait(Native Method)
     at java.lang.Object.wait(Object.java:502)
     at java.lang.UNIXProcess.waitFor(UNIXProcess.java:395)
     - locked <0x00000006c51b18d8> (a java.lang.UNIXProcess)
     at org.apache.maven.surefire.extensions.util.CommandlineExecutor.awaitExit(CommandlineExecutor.java:90)      at org.apache.maven.plugin.surefire.booterclient.ForkStarter.fork(ForkStarter.java:654)      at org.apache.maven.plugin.surefire.booterclient.ForkStarter.run(ForkStarter.java:305)      at org.apache.maven.plugin.surefire.booterclient.ForkStarter.run(ForkStarter.java:265)      at org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeProvider(AbstractSurefireMojo.java:1314)      at org.apache.maven.plugin.surefire.AbstractSurefireMojo.executeAfterPreconditionsChecked(AbstractSurefireMojo.java:1159)      at org.apache.maven.plugin.surefire.AbstractSurefireMojo.execute(AbstractSurefireMojo.java:932)      at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:137)      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:210)      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:156)      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117)      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81)      at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:56)      at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128) 
     at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:305)
     at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:192)
     at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:105)
     at org.apache.maven.cli.MavenCli.execute(MavenCli.java:957)
     at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:289)
     at org.apache.maven.cli.MavenCli.main(MavenCli.java:193)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
     at java.lang.reflect.Method.invoke(Method.java:498)
     at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:282)      at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:225)      at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:406)      at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:347) 

"VM Thread" os_prio=31 tid=0x00007ff30f01e800 nid=0x3703 runnable
"Gang worker#0 (Parallel GC Threads)" os_prio=31 tid=0x00007ff30e014800 nid=0x2207 runnable
"Gang worker#1 (Parallel GC Threads)" os_prio=31 tid=0x00007ff30e020000 nid=0x2a03 runnable
"Gang worker#2 (Parallel GC Threads)" os_prio=31 tid=0x00007ff30e020800 nid=0x5303 runnable
"Gang worker#3 (Parallel GC Threads)" os_prio=31 tid=0x00007ff30e021800 nid=0x5103 runnable
"Gang worker#4 (Parallel GC Threads)" os_prio=31 tid=0x00007ff30e022000 nid=0x4f03 runnable
"Gang worker#5 (Parallel GC Threads)" os_prio=31 tid=0x00007ff310008800 nid=0x4e03 runnable
"Gang worker#6 (Parallel GC Threads)" os_prio=31 tid=0x00007ff310808800 nid=0x2d03 runnable
"Gang worker#7 (Parallel GC Threads)" os_prio=31 tid=0x00007ff310809000 nid=0x4c03 runnable
"Gang worker#8 (Parallel GC Threads)" os_prio=31 tid=0x00007ff31080a000 nid=0x2f03 runnable
"Gang worker#9 (Parallel GC Threads)" os_prio=31 tid=0x00007ff31080a800 nid=0x3103 runnable
"Concurrent Mark-Sweep GC Thread" os_prio=31 tid=0x00007ff310009000 nid=0x4803 runnable
"Gang worker#0 (Parallel CMS Threads)" os_prio=31 tid=0x00007ff30e023000 nid=0x3303 runnable
"Gang worker#1 (Parallel CMS Threads)" os_prio=31 tid=0x00007ff30e023800 nid=0x3403 runnable
"Gang worker#2 (Parallel CMS Threads)" os_prio=31 tid=0x00007ff30e024800 nid=0x4a03 runnable
"VM Periodic Task Thread" os_prio=31 tid=0x00007ff30f02c000 nid=0xa203 waiting on condition 

JNI global references: 827

Heap
  par new generation   total 157248K, used 130825K [0x00000006c0000000, 0x00000006caaa0000, 0x00000006f4000000)    eden space 139776K,  81% used [0x00000006c0000000, 0x00000006c6eb2780, 0x00000006c8880000)    from space 17472K, 100% used [0x00000006c9990000, 0x00000006caaa0000, 0x00000006caaa0000)    to   space 17472K,   0% used [0x00000006c8880000, 0x00000006c8880000, 0x00000006c9990000)   concurrent mark-sweep generation total 349568K, used 185199K [0x00000006f4000000, 0x0000000709560000, 0x00000007c0000000)   Metaspace       used 68880K, capacity 72190K, committed 74640K, reserved 1116160K    class space    used 7775K, capacity 8552K, committed 8848K, reserved 1048576K 





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