vmTestbase/CollectionCounters test still unreliable. Avoid -Xcomp and use WhiteBox to cause GC.
------------- Commit messages: - Remove remaining 'randomness' - 8374745: Test vmTestbase/nsk/monitoring/GarbageCollectorMXBean/CollectionCounters/CollectionCounters004/TestDescription.java failed Changes: https://git.openjdk.org/jdk/pull/29122/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29122&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8374745 Stats: 57 lines in 5 files changed: 36 ins; 10 del; 11 mod Patch: https://git.openjdk.org/jdk/pull/29122.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/29122/head:pull/29122 PR: https://git.openjdk.org/jdk/pull/29122
