Merge

8180421: Change default value of BiasedLockingStartupDelay to 0 Summary: As CSR 8181778 Reviewed-by: tschatzl, redestad, coleenp, dcubed

8182984: [aix] Make stack traces independent on successful vm initialization Reviewed-by: simonis, mdoerr, clanger

8178151: Clean up G1RemSet files Summary: Remove unnecessary class members, improve method visibility and naming Reviewed-by: ehelin, sjohanss

8183006: Remove unused IterateOopClosureRegionClosure Reviewed-by: sjohanss, ehelin

8183002: Remove unused concurrent parameter in HeapRegionManager::par_iterate Reviewed-by: ehelin, sjohanss

8175554: Improve G1UpdateRSOrPushRefClosure Summary: Micro-optimizations and improving naming for the G1UpdateRSOrPushRefClosure Reviewed-by: ehelin, sangheki

8178148: Log more detailed information about scan rs phase Summary: Add logging about the number of cards actually scanned, claimed and skipped during the Scan RS phase Reviewed-by: ehelin, sangheki

8181053: port basicvmtest to jtreg Reviewed-by: ehelin

Merge

8182487: Add Unsafe.objectFieldOffset(Class, String) Reviewed-by: dsimms, twisti, bchristi, mgerdin, psandoz, chegar

8182864: [aix] os::print_native_callstack should not assert for primordial threadness Reviewed-by: clanger, mdoerr

8182883: Update Graal Reviewed-by: kvn

8178490: Usages of is_object_aligned with pointers are broken Reviewed-by: tschatzl, kbarrett