In the test run that included the change from JDK-8373945 the test failed with:WARNING::Class couldn't be unloaded

Test: vmTestbase/nsk/jvmti/scenarios/events/EM02/em02t003/TestDescription.java

----------System.out:(38/2179)----------
[1:57:25.376] debuggee> ClassLoading:: Tested class was successfully loaded.
[1:57:25.383] debuggee> MethodCompiling:: Provoke compiling.
[1:57:25.389] debuggee> MethodCompiling:: Provoke unloading compiled method -
trying to unload class...
[1:57:25.414] debuggee> ClassLoading:: Tested class was successfully unloaded.
[1:57:25.414] debuggee>

[1:57:25.415] debuggee> ClassLoading:: Tested class was successfully loaded.
[1:57:25.415] debuggee> MethodCompiling:: Provoke compiling.
[1:57:25.421] debuggee> MethodCompiling:: Provoke unloading compiled method -
trying to unload class...
[1:57:25.428] # ERROR: debuggee> WARNING::Class couldn't be unloaded
The following stacktrace is for failure analysis.
nsk.share.TestFailure: debuggee> WARNING::Class couldn't be unloaded
at nsk.share.Log.logExceptionForFailureAnalysis(Log.java:309)
at nsk.share.Log.complain(Log.java:280)
at nsk.share.Log$Logger.complain(Log.java:546)
at nsk.jvmti.scenarios.events.EM02.em02t003.runIt(em02t003.java:113)
at nsk.jvmti.scenarios.events.EM02.em02t003.run(em02t003.java:48)
at nsk.jvmti.scenarios.events.EM02.em02t003.main(em02t003.java:43)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:565)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1516)
[1:57:25.435] debuggee>

[1:57:25.436] debuggee> ClassLoading:: Tested class was successfully loaded.
[1:57:25.436] debuggee> MethodCompiling:: Provoke compiling.
[1:57:25.441] debuggee> MethodCompiling:: Provoke unloading compiled method -
trying to unload class...
[1:57:25.448] # ERROR: debuggee> WARNING::Class couldn't be unloaded
[1:57:25.448] debuggee>

Other tests also failed - see comments