The following test timed out in the JDK17 CI:

serviceability/sa/ClhsdbDumpheap.java

Here's a snippet from the log file:

HprofReader.getStack() output:
Dump file created Thu Mar 11 21:13:08 GMT 2021
SerialNo 8
  java.lang.Object.wait(J)V (Object.java:(native method))
  java.lang.ref.ReferenceQueue.remove(J)Ljava/lang/ref/Reference; (ReferenceQueue.java:155)
  jdk.internal.ref.CleanerImpl.run()V (CleanerImpl.java:140)
  java.lang.Thread.run()V (Thread.java:831)
  jdk.internal.misc.InnocuousThread.run()V (InnocuousThread.java:161)
SerialNo 7
SerialNo 6
SerialNo 5
SerialNo 4
  java.lang.Object.wait(J)V (Object.java:(native method))
  java.lang.ref.ReferenceQueue.remove(J)Ljava/lang/ref/Reference; (ReferenceQueue.java:155)
  java.lang.ref.ReferenceQueue.remove()Ljava/lang/ref/Reference; (ReferenceQueue.java:176)
  java.lang.ref.Finalizer$FinalizerThread.run()V (Finalizer.java:171)
SerialNo 3
  java.lang.ref.Reference.waitForReferencePendingList()V (Reference.java:(native method))
  java.lang.ref.Reference.processPendingReferences()V (Reference.java:253)
  java.lang.ref.Reference$ReferenceHandler.run()V (Reference.java:215)
SerialNo 2
  java.lang.Thread.sleep(J)V (Thread.java:(native method))
  jdk.test.lib.apps.LingeredApp.main([Ljava/lang/String;)V (LingeredApp.java:534)
SerialNo 1

Starting clhsdb against 10972
[2021-03-11T21:13:49.533352200Z] Gathering output for process 17136
----------System.err:(0/0)----------
----------rerun:(49/6053)*----------

<snip>

result: Error. Program `c:\ade\mesos\work_dir\jib-master\install\jdk-17+13-995\windows-x64-debug.jdk\jdk-17\fastdebug\bin\java' timed out (timeout set to 1200000ms, elapsed time including timeout handling was 1393437ms).

This test task has the following JVM args:

-Xcomp -XX:+CreateCoredumpOnCrash -ea -esa -XX:CompileThreshold=100 -XX:+UnlockExperimentalVMOptions -server -XX:+TieredCompilation -XX:+DeoptimizeALot