Reviewed-by: ysr

6692906: CMS: parallel concurrent marking may be prone to hanging or stalling mutators for periods of time
Summary: Inserted missing yield(check)s in closures used during the work-stealing phase of parallel concurrent marking, a missing synchronous yield-request in the cms perm gen allocation path, and a terminator-terminator for the offer_termination invocation that monitors the yield status of the concurrent marking task. Elaborated some documentation comments and made some task queue termination loop flags configurable at start-up to aid debugging in the field.
Reviewed-by: jmasa, johnc, poonam

6942771: SEGV in ParScanThreadState::take_from_overflow_stack
Reviewed-by: apetrusenko, ysr, pbk

Summary: Re-enable use of the lock-free versions of region stack push() and pop() by recording aborted regions in a thread-local structure, which are then processed when scanning of the region stack restarts. The previous locking versions of these routines are retained for diagnostic purposes.
Reviewed-by: tonyp, ysr

Reviewed-by: ohair

Summary: Associate number of GC workers with the workgang as opposed to the task.
Reviewed-by: johnc, ysr

Reviewed-by: ohair, kvn

Summary: Pass correct value for length to NumberSeq constructor. Guard dereferences of "body_summary" pointer with a NULL check.
Reviewed-by: tonyp, ysr

Summary: Emit a fake frame that makes it look like the thread is in the OutOfMemoryError zero-parameter constructor
Reviewed-by: dcubed

Summary: Fixed comment/documentation typos; converted some guarantee()s to assert()s.
Reviewed-by: jmasa

Summary: Update the Major and Build numbers for HS20
Reviewed-by: jcoomes

Summary: Use javac's @filename construct to avoid long compile lines
Reviewed-by: ohair, twisti, never
Contributed-by: doko@ubuntu.com

Summary: See synopsis
Reviewed-by: ohair

Summary: Must check locals for null when processing chop frame
Reviewed-by: dholmes, dcubed

Summary: Implementation of a nonproduct boolean flag XX:PrintFlagsWithComments
Reviewed-by: kamg, dholmes, dsamersoff

Reviewed-by: kvn

Summary: Fix code in TypeAryPtr::xmeet() for constant array.
Reviewed-by: never

Reviewed-by: kvn

Summary: Use resource memory instead of c-heap for the exception message
Reviewed-by: phh, jmasa

Summary: An assert in the management.cpp is too strong and assumes the max size is always defined on memory pools, even when we don't need to use it.
Reviewed-by: mchung, johnc

Summary: simple correction in testcase
Reviewed-by: mchung

Summary: This is a preparation for 6961690.
Reviewed-by: kvn, never

Summary: Use NULL as klass for TypeAryPtr::RANGE. Add klass verification into TypeAryPtr ctor.
Reviewed-by: never

Summary: Disable stack bounds checks in product mode other than for the initial thread
Reviewed-by: coleenp, jcoomes, aph

Reviewed-by: tonyp, ysr