8064458: OopMap class could be more compact Reviewed-by: kvn, bdelsart

8078593: [TESTBUG] ppc: Enable jtreg tests for new features Summary: Also fix a ppc issue in test_env.sh Reviewed-by: kvn

8078563: Restrict reduction optimization Reviewed-by: kvn, twisti Contributed-by: michael.c.berg@intel.com

8079280: Fix format warning/error in vm_version_ppc.cpp Reviewed-by: stefank

8079556: BACKOUT - Determining the desired PLAB size adjusts to the the number of threads at the wrong place Reviewed-by: jwilhelm, brutisso

6407976: GC worker number should be unsigned Reviewed-by: jwilhelm, tschatzl

8079337: Format string issues in workgroup.cpp and taskqueue.cpp Reviewed-by: jwilhelm, pliden, ehelin

8079330: Circular dependency between G1CollectedHeap and G1BlockOffsetSharedArray Reviewed-by: tschatzl, mgerdin

8013171: G1: C1 x86_64 barriers use 32-bit accesses to 64-bit PtrQueue::_index Reviewed-by: roland, tschatzl

8079275: Remove CollectedHeap::use_parallel_gc_threads Reviewed-by: sjohanss, kbarrett

8079091: Remove dictionary NULL check on common path of BlockFreeList methods Reviewed-by: kbarrett, stefank, dholmes, jmasa

Merge

8079148: Fix incorrect include guards Reviewed-by: stefank, ehelin

8075215: SATB buffer processing found reclaimed humongous object Summary: Don't assume SATB buffer entries are valid objects Reviewed-by: brutisso, ecaspole

8078897: Clean out unused code in G1MMUTracker Reviewed-by: brutisso, jwilhelm, drwhite

8078405: Heap decommit failed in TestShrinkAuxiliaryData tests Summary: Modified test so options in the code are after the options from the environment, so -ExplicitGCInvokesConcurrent is always used. Reviewed-by: tschatzl, kbarrett