8156500: Move Reference pending list into VM to prevent deadlocks
Summary: Move reference pending list and locking into VM
Reviewed-by: coleenp, dholmes, dcubed, mchung, plevart
Contributed-by: kim.barrett@oracle.com, per.liden@oracle.com

8154154: Separate G1 specific policy code from the CollectorPolicy class hierarchy
Summary: Move G1 runtime policy code to new class G1Policy which is unrelated to CollectorPolicy
Reviewed-by: kbarrett, ehelin

8153302: [BACKOUT] STW phases at Concurrent GC should count in PerfCounter
Reviewed-by: jmasa, jwilhelm

8151674: STW phases at Concurrent GC should count in PerfCounter
Reviewed-by: jmasa, sla, tschatzl

8151085: Change G1 concurrent timer and tracer measuring time
Summary: Change measuring time for G1 concurrent phases and reporting heap summary
Reviewed-by: brutisso, sjohanss

8151601: Cleanup locking of the Reference pending list
Reviewed-by: brutisso, stefank

8145092: Use Unified Logging for the GC logging
Summary: JEP-271. VM changes contributed by brutisso, test changes contributed by david.
Reviewed-by: sjohanss, david, brutisso
Contributed-by: bengt.rutisson@oracle.com, david.lindholm@oralce.com

8134953: Make the GC ID available in a central place
Reviewed-by: pliden, jmasa

8080775: Better argument formatting for assert() and friends
Reviewed-by: kbarrett, pliden

8073052: Rename and clean up the allocation manager hierarchy in g1Allocator.?pp
Summary: Fix naming of G1ParGCAllocator, decrease dependencies between G1CollectedHeap, G1Allocator and G1AllocRegion, additional documentation.
Reviewed-by: mgerdin, jmasa, kbarrett

8072913: [REDO] GCCause should distinguish jcmd GC.run from System.gc()
Summary: GCCause which is caused by GC.run diagnostic command should be different from System.gc() .
Reviewed-by: jmasa, jwilhelm

8079792: GC directory structure cleanup
Reviewed-by: brutisso, stefank, david