8201480: ISA/CPU feature detection code crashes on linux-sparc Reviewed-by: dholmes, shade, stuefe

8201362: Remove CollectedHeap::barrier_set() Reviewed-by: shade, rkennke

8201475: 8199417 breaks AIX and non-pch on s390 (and presumably aarch64) Reviewed-by: eosterlund, shade, mdoerr

8201318: Introduce GCThreadLocalData to abstract GC-specific data belonging to a thread Reviewed-by: shade, rehn

8201316: Move G1-related static members from JavaThread to G1BarrierSet Reviewed-by: stefank, shade

8200384: jcmd help output should be sorted Reviewed-by: sspitsyn, clanger

8189101: AARCH32 - 'minimal' build fails because CMS bits are referred unconditionally Reviewed-by: shade, dholmes Contributed-by: boris.ulasevich@bell-sw.com

8199417: Modularize interpreter GC barriers Reviewed-by: coleenp, rkennke

8201265: Native memory leak in ClassLoader::add_to_exploded_build_list Summary: Allocate from temporary thread local memory instead of C heap memory. Reviewed-by: coleenp, dholmes, lfoltan

8201427: Fix Minimal VM builds on Linux x64 Reviewed-by: shade

8201370: GC specific data is referred from common precompiled headers and defNewGeneration.cpp Reviewed-by: stefank, shade, dholmes Contributed-by: boris.ulasevich@bell-sw.com

8200233: Simple G1 evacuation path performance enhancements Summary: Implement some minor performance optimizations in the evacuation path including changing some stores to be OOP_NOT_NULL, specializing the compressed/uncompressed oops path and delay some load of the current heapregion until absolutely necessary. Reviewed-by: kbarrett, sjohanss