8150619: Improve thread based logging introduced with 8149036 Reviewed-by: coleenp, dholmes

8140600: Convert unnecessarily malloc'd Monitors to value members Summary: Change a malloc'd monitor into an embedded monitor. Reviewed-by: tschatzl, kbarrett

Merge

Merge

8144732: VM_HeapDumper hits assert with bad dump_len Reviewed-by: dsamersoff

8150068: Log the main G1 phases at info level Reviewed-by: sjohanss, tschatzl

8150421: Delete experimental G1UseConcMarkReferenceProcessing Summary: Removed the option and supporting code. Reviewed-by: jmasa, tamao

Merge

8139651: ConcurrentG1Refine uses ints for many of its members that should be unsigned types Summary: ints need to be changed to size_t Reviewed-by: kbarrett, tbenson

Merge

8150629: Initializing all ParScanThreadStates causes significant unaccounted "Other" times Summary: Lazily allocate ParScanThreadStates within the worker threads instead of doing this work upfront serially. Reviewed-by: mgerdin, jmasa

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