The following test failed in the JDK19 CI:

applications/kafkastress/KafkaStressTest.java

Here's a snippet from the log file:

The stress VM is running but modules are not ready yet.
Will sleep 30000 ms before next check.
The stress VM is running but modules are not ready yet.
Will sleep 30000 ms before next check.
The stress VM is running but modules are not ready yet.
Will sleep 30000 ms before next check.
The stress VM is running but modules are not ready yet.
Will sleep 30000 ms before next check.
[stress.process.err] Iteration start: ThreadDumper at Fri Dec 17 15:40:56 UTC 2021
[stress.process.err] Iteration done: ThreadDumper at Fri Dec 17 15:40:56 UTC 2021
[stress.process.err] Iteration done: Jfr at Fri Dec 17 15:40:58 UTC 2021
Got an exception, so I'll kill the stress process process
[Fri Dec 17 15:41:26 UTC 2021] Unexpected errors during GlueModule initialization: Stress process finished unexpectedly with exit code 134
java.lang.RuntimeException: Stress process finished unexpectedly with exit code 134
at applications.kitchensink.process.glue.Main.waitUntilStressProcessReady(Main.java:422)
at applications.kitchensink.process.glue.Main.execute(Main.java:330)
at applications.kitchensink.process.glue.Main.main(Main.java:217)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:577)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
at java.base/java.lang.Thread.run(Thread.java:833)

JavaTest Message: Test threw exception: java.lang.RuntimeException: Stress process finished unexpectedly with exit code 134
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: Stress process finished unexpectedly with exit code 134
----------rerun:(36/7858)*----------

This failure mode looks very much like:

JDK-8278963 CassandraStressTest.java failed with "exit code 134"