Reviewed-by: tschatzl, mgerdin, kbarrett, drwhite

Summary: Speed up ParNew collections by pruning the list of scavengable nmethods.
Reviewed-by: jmasa, tonyp, twisti

Reviewed-by: dholmes

Reviewed-by: mgerdin, tschatzl
Contributed-by: richard.reingruber@sap.com

Reviewed-by: stefank, tschatzl, anoll, thartmann

Summary: Allow G1 to decommit memory of arbitrary regions within the heap and their associated auxiliary data structures card table, BOT, hot card cache, and mark bitmaps.
Reviewed-by: mgerdin, brutisso, jwilhelm

Reviewed-by: pliden, jmasa

Summary: Extend the WhiteBox API to provide information about the size and age of objects. Further add a mechanism to trigger a young GC.
Reviewed-by: tschatzl, sjohanss
Contributed-by: NLeonid Mesnik <leonid.mesnik@oracle.com>

Reviewed-by: brutisso, tschatzl

Reviewed-by: sjohanss, jmasa

Reviewed-by: brutisso, jmasa

Reviewed-by: brutisso, jmasa

Summary: Removed all write barriers during reference processing and added explicit write barriers when iterating through the discovered list.
Reviewed-by: pliden, jmasa, tschatzl

Reviewed-by: tschatzl, ehelin, brutisso, coleenp, roland, iveresov
Contributed-by: stefan.karlsson@oracle.com, mikael.gerdin@oracle.com

8043029: Change 8037816 breaks HS build with older GCC versions which don't support diagnostic pragmas
8043164: Format warning in traceStream.hpp
Summary: Backport of main fix + two corrections, enables clang compilation, turns on format attributes, corrects/mutes warnings
Reviewed-by: kvn, coleenp, iveresov, twisti

Summary: Add necessary memory fences so that the parallel threads are unable to observe partially filled block tables.
Reviewed-by: tschatzl

Reviewed-by: tschatzl, coleenp

Reviewed-by: jmasa, coleenp

Summary: Made the flags Min- and MaxHeapFreeRatio manageable, and implemented support for these flags in ParallelGC.
Reviewed-by: sla, mgerdin, brutisso

Reviewed-by: stefank, mgerdin, coleenp, egahlin

Reviewed-by: tschatzl, stefank, jmasa

8020277: Young GC could be extremely slow due to assertion in ObjectStartArray::object_starts_in_range
8009462: Young GC's (ParNewGC and SerialGC) have unexpected variances.
Summary: Removed the assertion slowing down GC.
Reviewed-by: stefank, mgerdin

Summary: Clean up usage of idx_t and uintptr_t when using it in conjunction with BitMap::set_map(), casting to the appropriate type. Fixes compilation on S390.
Reviewed-by: tschatzl
Contributed-by: NDan Horak <dhorak@redhat.com>

Reviewed-by: twisti, stefank

Reviewed-by: dholmes, kvn, stefank, twisti

Reviewed-by: jwilhelm, ehelin, tschatzl

Summary: Correct timing measurement by modifying the scope of the GCTraceTime instance.
Reviewed-by: ysr, tamao
Contributed-by: NJeremy Manson <jeremymanson@google.com>

Summary: Copyright year updated for files modified during 2013
Reviewed-by: twisti, iveresov

Summary: Reducing the number of calls to follow_class_loader to speed up the marking phase. Also removed some unnecessary calls to adjust_klass.
Reviewed-by: stefank, jmasa, mgerdin

Reviewed-by: dholmes, egahlin

Summary: Needed to update _space_alignment in generation sizer to ensure correct sizing of spaces.
Reviewed-by: jmasa, tschatzl

7057939: jmap shows MaxNewSize=4GB when Java is using parallel collector
Summary: Major cleanup of the collectorpolicy classes
Reviewed-by: tschatzl, jcoomes

Summary: Cleanup related to the NewSize and MaxNewSize bugs
Reviewed-by: tschatzl, jcoomes, ehelin

Summary: Removed stray includes and some minor cleanup of GenerationSizer
Reviewed-by: tschatzl, jcoomes

Summary: Enable CHECK_UNHANDLED_OOPS in fastdebug builds across all supported platforms.
Reviewed-by: coleenp, hseigel, dholmes, stefank, twisti, ihse, rdurbin
Contributed-by: lois.foltan@oracle.com

Reviewed-by: jwilhelm, brutisso, tschatzl

Summary: Use conservative assumptions of required alignment for the various garbage collector components into account when determining the maximum heap size that supports compressed oops. Using this conservative value avoids several circular dependencies in the calculation.
Reviewed-by: stefank, dholmes

Summary: Added AIX includes alpha-sorted before BSD. Fix compilation issues with xlC in shared code. Basic shared platform dependend adaption (vm_version etc.).
Reviewed-by: kvn, dholmes, stefank

Reviewed-by: mgerdin, coleenp, hseigel, jmasa, ctornqvi

Reviewed-by: tschatzl, brutisso