The web application [sonar] appears to have started a thread named [Okio Watchdog]

SonarQube Server / Community Build
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1

Must-share information (formatted with Markdown):

  • which versions are you using (SonarQube, Scanner, Plugin, and any relevant extension)
    SQ: 9.9.0.65466
    Java Plugin:

  • how is SonarQube deployed: zip

A restart was done of SQ and then we get the following in the log web.log

ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1122)\n java.base@17.0.6/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)\n java.base@17.0.6/java.lang.Thread.run(Thread.java:833)
2023.06.15 09:04:29 WARN  web[][o.a.c.l.WebappClassLoaderBase] The web application [sonar] appears to have started a thread named [OkHttp TaskRunner] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:\n java.base@17.0.6/jdk.internal.misc.Unsafe.park(Native Method)\n java.base@17.0.6/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:252)\n java.base@17.0.6/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:401)\n java.base@17.0.6/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:903)\n java.base@17.0.6/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)\n java.base@17.0.6/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1122)\n java.base@17.0.6/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)\n java.base@17.0.6/java.lang.Thread.run(Thread.java:833)
2023.06.15 09:04:29 WARN  web[][o.a.c.l.WebappClassLoaderBase] The web application [sonar] appears to have started a thread named [OkHttp TaskRunner] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:\n java.base@17.0.6/jdk.internal.misc.Unsafe.park(Native Method)\n java.base@17.0.6/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:252)\n java.base@17.0.6/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:401)\n java.base@17.0.6/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:903)\n java.base@17.0.6/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)\n java.base@17.0.6/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1122)\n java.base@17.0.6/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)\n java.base@17.0.6/java.lang.Thread.run(Thread.java:833)
2023.06.15 09:04:29 WARN  web[][o.a.c.l.WebappClassLoaderBase] The web application [sonar] appears to have started a thread named [OkHttp TaskRunner] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:\n java.base@17.0.6/jdk.internal.misc.Unsafe.park(Native Method)\n java.base@17.0.6/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:252)\n java.base@17.0.6/java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:401)\n java.base@17.0.6/java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:903)\n java.base@17.0.6/java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1061)\n java.base@17.0.6/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1122)\n java.base@17.0.6/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)\n java.base@17.0.6/java.lang.Thread.run(Thread.java:833)
2023.06.15 09:04:29 WARN  web[][o.a.c.l.WebappClassLoaderBase] The web application [sonar] appears to have started a thread named [Okio Watchdog] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:\n java.base@17.0.6/java.lang.Object.wait(Native Method)\n app//okio.AsyncTimeout$Companion.awaitTimeout$okio(AsyncTimeout.kt:302)\n app//okio.AsyncTimeout$Watchdog.run(AsyncTimeout.kt:183)
2023.06.15 09:04:29 INFO  web[][o.s.s.app.WebServer] Web Server stopped
2

restarted server and sq.

I can see the following in the nohup.log

2023.06.15 10:19:32 INFO  app[][o.s.a.ProcessLauncherImpl] Launch process[WEB_SERVER] from [/opt/sonarqube]: /opt/openjdk/17.0.6/bin/java -Djava.awt.headless=true -Dfile.encoding=UTF-8 -Djava.io.tmpdir=/opt/sonarqube/temp -XX:-OmitStackTraceInFastThrow --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED --add-exports=java.base/jdk.internal.ref=ALL-UNNAMED --add-opens=java.base/java.nio=ALL-UNNAMED --add-opens=java.base/sun.nio.ch=ALL-UNNAMED --add-opens=java.management/sun.management=ALL-UNNAMED --add-opens=jdk.management/com.sun.management.internal=ALL-UNNAMED -Dcom.redhat.fips=false -Xmx2048m -Xms128m -XX:+HeapDumpOnOutOfMemoryError -Djava.net.preferIPv4Stack=true -Duser.timezone=Europe/Stockholm -javaagent:./extensions/plugins/sonarqube-community-branch-plugin-1.14.0.jar=web -Dhttp.nonProxyHosts=localhost|127.*|[::1] -cp ./lib/sonar-application-9.9.0.65466.jar:/opt/sonarqube/lib/jdbc/postgresql/postgresql-42.5.1.jar org.sonar.server.app.WebServer /opt/sonarqube/temp/sq-process6005635985789431289properties
Error opening zip file or JAR manifest missing : ./extensions/plugins/sonarqube-community-branch-plugin-1.14.0.jar
Error occurred during initialization of VM
agent library failed to init: instrument