With -XX:+UseZGC -XX:+ZVerifyViews -XX:ZCollectionInterval=0.01 we get crashes in java/lang/management/ThreadMXBean/LockedMonitors.java and java/lang/Thread/virtual/stress/GetStackTraceALot:

HandleArea::allocate_handle(oop) -> assert(oopDesc::is_oop_or_null(obj)) failed: not an oop