The following test failed in the JDK15 CI:

jdk/jfr/api/consumer/recordingstream/TestOnEvent.java

snippets from the log file:

#section:main
----------messages:(7/350)----------
command: main jdk.jfr.api.consumer.recordingstream.TestOnEvent
reason: User specified action: run main/othervm jdk.jfr.api.consumer.recordingstream.TestOnEvent
Mode: othervm [/othervm specified]
Additional options from @modules: --add-modules jdk.jfr,java.management
Timeout information:
--- Timeout information end.
elapsed time (seconds): 525.211
----------configuration:(3/51)----------
Boot Layer
  add modules: jdk.jfr java.management

----------System.out:(65/2448)----------
Entering testOnEventNull()
Leaving testOnEventNull()
Entering testOnEvent()
Leaving testOnEvent()
Entering testNamedEvent()
TestNamedEvent:A {
  startTime = 04:55:50.165
  eventThread = "MainThread" (javaThreadId = 13)
  stackTrace = [
    jdk.jfr.api.consumer.recordingstream.TestOnEvent.testNamedEvent() line: 129
    jdk.jfr.api.consumer.recordingstream.TestOnEvent.main(String[]) line: 59
    jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Method, Object, Object[])
    jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Object, Object[]) line: 64
    jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 43

<snip>


testTwoEventWithSameNameA {
  startTime = 04:55:52.292
  eventThread = "MainThread" (javaThreadId = 13)
  stackTrace = [
    jdk.jfr.api.consumer.recordingstream.TestOnEvent.testTwoEventWithSameName() line: 103
    jdk.jfr.api.consumer.recordingstream.TestOnEvent.main(String[]) line: 60
    jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Method, Object, Object[])
    jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Object, Object[]) line: 64
    jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 43
    ...
  ]
}


Leaving testTwoEventWithSameName()
Timeout refired 480 times

<snip>

 -Dtest.nativepath=/opt/mach5/mesos/work_dir/jib-master/install/jdk-15+21-960/linux-x64-debug.test/jdk/jtreg/native \\
        --add-modules jdk.jfr,java.management \\
        -Xmx512m \\
        -XX:MaxRAMPercentage=6 \\
        -ea \\
        -esa \\
        -ea \\
        -esa \\
        -XX:-UseNotificationThread \\
        -Djava.library.path=/opt/mach5/mesos/work_dir/jib-master/install/jdk-15+21-960/linux-x64-debug.test/jdk/jtreg/native \\
        com.sun.javatest.regtest.agent.MainWrapper /opt/mach5/mesos/work_dir/slaves/b0d836b1-c68c-4dbd-8b78-5085890ddd4c-S1321/frameworks/1735e8a2-a1db-478c-8104-60c8b0af87dd-0196/executors/9e89e748-354f-4a86-8c92-fb3fcf205635/runs/a412cb05-c1df-438f-aacd-42222e6b6586/testoutput/test-support/jtreg_open_test_jdk_jdk_svc/jdk/jfr/api/consumer/recordingstream/TestOnEvent.d/main.0.jta
result: Error. Program `/opt/mach5/mesos/work_dir/jib-master/install/jdk-15+21-960/linux-x64-debug.jdk/jdk-15/fastdebug/bin/java' timed out (timeout set to 480000ms, elapsed time including timeout handling was 525207ms).