java.lang.AssertionError: No matching stack trace found
at jdk.jfr.event.gc.stacktrace.AllocationStackTrace.testAllocEvent(AllocationStackTrace.java:352)
at jdk.jfr.event.gc.stacktrace.AllocationStackTrace.testMetaspaceG1GCAllocEvent(AllocationStackTrace.java:301)
at jdk.jfr.event.gc.stacktrace.TestMetaspaceG1GCAllocationPendingStackTrace.main(TestMetaspaceG1GCAllocationPendingStackTrace.java:39)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
at java.base/java.lang.Thread.run(Thread.java:832)

It doesn't fail on every run but probably 1 out of 3 (depending on timing).