The test failed on most platforms in PIT of HS for jdk9-dev:

java.lang.AssertionError: Assertion failed: 2 = 1 : Should get exactly one vm/class/unload event,got 2
at jrockit.Asserts.assertion(Asserts.java:33)
at jrockit.Asserts.assertEquals(Asserts.java:45)
at TestClassUnloadEvent.assertEventFound(TestClassUnloadEvent.java:66)
at TestClassUnloadEvent.main(TestClassUnloadEvent.java:55)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:484)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:744)

Fastdebug build only, configuration: -Xcomp -server -Xcomp (2 -Xcomp?)

There are flight recordings in the result directories.

RULE closed/com/oracle/jfr/runtime/TestClassUnloadEvent.java Exception java.lang.AssertionError: Assertion failed: ... = ... : Should get exactly one vm/class/unload event,got ...