EventCounts:
CollectionSummary: young.collections=11, young.time=12241866, old.collections=4, old.time=107972888, collectors=(ParallelScavenge, ParallelOld)
BeanCounts:
CollectionSummary: young.collections=11, young.time=12000, old.collections=4, old.time=108000, collectors=(PS MarkSweep, PS Scavenge)
java.lang.RuntimeException: GcEvent: gcId=3, method=ParallelScavenge, cause=Allocation Failure, startTime=2024-07-06T07:53:57.457330899Z does not contain event jdk.PSHeapSummary: expected true, was false
at jdk.test.lib.Asserts.fail(Asserts.java:691)
at jdk.test.lib.Asserts.assertTrue(Asserts.java:543)
at jdk.jfr.event.gc.collection.GCEventAll.verifySingleGcBatch(GCEventAll.java:288)
at jdk.jfr.event.gc.collection.GCEventAll.verify(GCEventAll.java:179)
at jdk.jfr.event.gc.collection.GCEventAll.doSingleTest(GCEventAll.java:139)
at jdk.jfr.event.gc.collection.GCEventAll.doTest(GCEventAll.java:96)
at jdk.jfr.event.gc.collection.TestGCEventMixedWithParallelOld.main(TestGCEventMixedWithParallelOld.java:38)

But there is a jtreg output overflow so the chances are the event did happen it just can't be seen due to excessive output.