8150630: Add logging for ParScanThreadState merge phase Summary: Improve visibility of the per-thread scan state merge phase by adding appropriate logging. Reviewed-by: jmasa, tbenson

8076463: Add logging for the preserve CM referents task Summary: Add logging and do minor refactoring to CM referents handling task. Reviewed-by: jmasa

8140777: Make Adaptive IHOP logging information the same as JFR logging Reviewed-by: tbenson, jmasa

8150390: Move rs length sampling data to the sampling thread Reviewed-by: drwhite, jwilhelm

8150103: Convert TraceClassPaths to Unified Logging Summary: TraceClassPaths has been reimplemented with Unified Logging Reviewed-by: coleenp, dholmes, iklam

8134992: vm/gc/compact/Compact_InternedStrings_Strings failed due to a malloc() failure Reviewed-by: mgerdin, brutisso

Merge