The test jdk/jfr/event/oldobject/TestLargeRootSet.java from tier5 has been intermittently but frequently failing for some time, with a RuntimeException of "Could not find root object". There are failures on all platforms.

This was mentioned as one of the failure modes for JDK-8202662, but either has reappeared in another form or was actually a different problem all along. (I haven't tried to go that far back in this test's history.)

No interesting command line options, using G1 (default).