7048782: CMS: assert(last_chunk_index_to_check<= last_chunk_index) failed: parCardTableModRefBS.cpp:359
Summary: The LNC array is sized before the start of a scavenge, while the heap may expand during a scavenge. With CMS, the last block of an arbitrary suffice of the LNC array may expand due to coalition with the expansion delta. We now take care not to attempt access past the end of the LNC array. LNC array code will be cleaned up and suitably encapsulated as part of the forthcoming performance RFE 7043675.
Reviewed-by: brutisso

7048342: CMS: eob == _limit || fc->isFree() failed: Only a free chunk should allow us to cross over the limit
Summary: The freeness bit was being cleared in debug code when it shouldn't have been. Also removed unused FreeChunk methods linkAfterNonNull and clearPrev.
Reviewed-by: brutisso

Summary: Do a one-step look-ahead, when sweeping free or garbage blocks, to avoid overstepping sweep limit, which may become a non-block-boundary because of a heap expansion delta coalescing with a previously co-terminal free block.
Reviewed-by: brutisso, tonyp

Summary: Missing fail flag set in strings concatenation code.
Reviewed-by: never

Summary: Update the HS21 build number to 14
Reviewed-by: jcoomes

Reviewed-by: jrose

7044892: JSR 292: API entry points sometimes throw the wrong exceptions or doesn't throw the expected one
Summary: Fix to 7042656: JSR292: invokeExact/Generic doesn't throw UnsupportedOperationException if invoked via Method.invoke
Reviewed-by: never

Summary: fixed tests.
Reviewed-by: iveresov, never

Summary: ARM ricochet port and minor fixes in shared debug code
Reviewed-by: jrose, vladidan

Summary: During an evacuation pause clear the region fields of any concurrent marking task whose local finger points into the collection set as the values in the region fields will become stale. Clearing these fields causes the concurrent mark task to claim a new region when marking restarts after the pause.
Reviewed-by: tonyp, iveresov

Reviewed-by: kvn, iveresov

Summary: Fix problems in new RCE code.
Reviewed-by: never

Summary: Added Open (OpenJDK) and Emb (Embedded) build flavours to JPRT. Added a few open builds and basic sanity tests to the normal JDK7 JPRT submission job.
Reviewed-by: ohair, jcoomes, bobv, kvn

Summary: Update the HS21 build number to 13
Reviewed-by: jcoomes

Reviewed-by: jrose, kvn, never

Summary: Add a notification to the GarbageCollectorMXBeans
Reviewed-by: acorn, mchung

Reviewed-by: kvn, coleenp

Summary: Fixed assertion checking code that was attempting to translate addresses past end of space for card-table slot. Also elaborated some assertion checking messages.
Reviewed-by: iveresov, jmasa, tonyp

Summary: Use '-e' version of sed expressions. Clarify and fix comments
Reviewed-by: never, acorn

7043040: JSR292: JRuby bench/shootout/binarytrees.ruby-2.ruby SEGV: constantPoolKlass::oop_follow_contents
Reviewed-by: kvn, ysr

Summary: Generate Opaque2 node only during first unroll.
Reviewed-by: never

Summary: Fixed the warning, also fixed copyrights in a bunch of files.
Reviewed-by: johnc, kvn

7042122: JSR 292: adjust various inline thresholds for JSR 292 API methods and method handle adapters
Reviewed-by: jrose, never, kvn

6883834: ParNew: assert(!_g->to()->is_in_reserved(obj),"Scanning field twice?") with LargeObjects tests
Summary: Fixed process_chunk_boundaries(), used for parallel card scanning when using ParNew/CMS, so as to prevent double-scanning, or worse, non-scanning of imprecisely marked objects exceeding parallel chunk size. Made some sizing parameters for parallel card scanning diagnostic, disabled ParallelGCRetainPLAB, and elaborated and clarified some comments.
Reviewed-by: stefank, johnc

Reviewed-by: kvn