The following test failed in the JDK20 CI:

java/lang/ref/FinalizerHistogramTest.java

Here's a snippet from the log file:

#section:main
----------messages:(8/310)----------
command: main FinalizerHistogramTest
reason: User specified action: run main FinalizerHistogramTest
started: Wed Dec 14 08:24:41 GMT 2022
Mode: agentvm
Agent id: 10
Additional opens to unnamed modules from @modules: java.base/java.lang.ref
finished: Wed Dec 14 08:24:41 GMT 2022
elapsed time (seconds): 0.039
----------configuration:(13/1577)----------

<snip>

----------System.err:(17/1064)----------
Test failed with java.lang.RuntimeException: MyObject is not found in test output
java.lang.RuntimeException: MyObject is not found in test output
at FinalizerHistogramTest.main(FinalizerHistogramTest.java:93)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:312)
at java.base/java.lang.Thread.run(Thread.java:1623)
java.lang.RuntimeException: Test failed
at FinalizerHistogramTest.main(FinalizerHistogramTest.java:100)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:312)
at java.base/java.lang.Thread.run(Thread.java:1623)

JavaTest Message: Test threw exception: java.lang.RuntimeException
JavaTest Message: shutting down test

----------System.out:(4/119)----------
Objects intialized: 1000
Unreachable instances waiting for finalization
#instances class name
-----------------------
result: Failed. Execution failed: `main' threw exception: java.lang.RuntimeException: Test failed


Normally a Tier1 failure would start as a P2, but this failure did not
reproduce in the next three Tier1 job sets.