The following test timed out in the JDK14 CI:

jdk/jfr/event/oldobject/TestLargeRootSet.java

Here's a snippet from the log file:

ATTEMPT: 786
====================================
Sample: 0
 - allocationTime: 2019-12-13T08:26:01.477158474Z
 - type: jdk.jfr.event.oldobject.TestLargeRootSet$RootThread
 - root:
   - description: Thread Name: Thread-39300
   - system: Threads
   - type: Handle Area
 - stack:
      jdk.jfr.event.oldobject.TestLargeRootSet.main(...)
      jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(...)
      jdk.internal.reflect.NativeMethodAccessorImpl.invoke(...)
      jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(...)
      java.lang.reflect.Method.invoke(...)
      com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(...)
      java.lang.Thread.run(...)

Sample: 1
 - allocationTime: 2019-12-13T08:26:02.015327454Z
 - type: java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionNode
 - root:
   - description: Thread Name: Thread-39294
   - system: Threads
   - type: Stack Variable
 - stack:
      java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(...)
      java.util.concurrent.CyclicBarrier.dowait(...)
      java.util.concurrent.CyclicBarrier.await(...)
      jdk.jfr.event.oldobject.TestLargeRootSet$RootThread.buildRootObjects(...)
      jdk.jfr.event.oldobject.TestLargeRootSet$RootThread.buildRootObjects(...)
      jdk.jfr.event.oldobject.TestLargeRootSet$RootThread.buildRootObjects(...)
      jdk.jfr.event.oldobject.TestLargeRootSet$RootThread.buildRootObjects(...)
      jdk.jfr.event.oldobject.TestLargeRootSet$RootThread.buildRootObjects(...)
      jdk.jfr.event.oldobject.TestLargeRootSet$RootThread.buildRootObjects(...)
      jdk.jfr.event.oldobject.TestLargeRootSet$RootThread.buildRootObjects(...)



ATTEMPT: 787
====================================
----------System.err:(0/0)----------
----------rerun:(44/5504)*----------

<snip>

result: Error. Program `c:\ade\mesos\work_dir\jib-master\install\jdk-14+27-1338\windows-x64-debug.jdk\jdk-14\fastdebug\bin\java' timed out (timeout set to 1200000ms, elapsed time including timeout handling was 1237951ms).


test result: Error. Program `c:\ade\mesos\work_dir\jib-master\install\jdk-14+27-1338\windows-x64-debug.jdk\jdk-14\fastdebug\bin\java' timed out (timeout set to 1200000ms, elapsed time including timeout handling was 1237951ms).