Summary: remove clear_scratch_buffer_blob and let init_scratch_buffer_blob free and allocate a new blob if required.
Reviewed-by: twisti

7009359: HS with -XX:+AggressiveOpts optimize new StringBuffer(null) so it does not throw NPE as expected
Summary: Bailout StringConcat optimization if null is passed to StringBuffer constructor.
Reviewed-by: iveresov

Summary: Fix CAS of longs on SPARC 32bit and cmove on SPARC 64bit.
Reviewed-by: kvn

Reviewed-by: kvn, jrose

Summary: Add running specjvm98 and specjbb2005 with tiered compilation enabled with JPRT.
Reviewed-by: kvn

Summary: bump CG_BUILD_ITER_LIMIT to 20
Reviewed-by: iveresov

Summary: When bootstrap_method_ref in BootstrapMethods attribute points to a wrong CP entry (non-MethodHandle), JVM throws ClassFormatError with a message, where method index and class file name is garbage.
Reviewed-by: iveresov

Reviewed-by: never

6579789: Internal error "c1_LinearScan.cpp:1429 Error: assert(false,"")" in debuggee with fastdebug VM
Reviewed-by: kvn, iveresov

Summary: read Solaris kstat data to get more precise CPU information
Reviewed-by: iveresov, never, twisti, dholmes

Reviewed-by: kvn, iveresov

Summary: An interference between a fix for 6993125 and disabled optimization in compressedStream.cpp produces a warning with VS2010. Disable the warning for the code fragment for which the optimizations are disabled.
Reviewed-by: kvn

Reviewed-by: kvn, iveresov

Summary: After 6961690 we load non-oop pointers for the constant table which could easily be materialized in a few instructions.
Reviewed-by: never, kvn

Reviewed-by: kvn, twisti

Summary: Update the HS20 build number to 04
Reviewed-by: jcoomes

Summary: add another ResourceObj debug field to distinguish garbage
Reviewed-by: dholmes, coleenp

Summary: Relaxed the assert by allowing NULL referents when discovery may be concurrent.
Reviewed-by: johnc, jcoomes

Summary: ifdef definitions for PTRACE_GETREGS_REQ clarified
Reviewed-by: dholmes

Summary: Implementation of the CAS primitive for x64 compressed oops was incorrect. It kills rscratch2 register (r11), which is allocatable in C1. Also, we don't need to restore cmpval as it's never used after that, so we need only one temporary register, which can be scratch1.
Reviewed-by: kvn, never

7001033: assert(gch->gc_cause() == GCCause::_scavenge_alot || !gch->incremental_collection_failed())
7002546: regression on SpecJbb2005 on 7b118 comparing to 7b117 on small heaps
Summary: Relaxed assertion checking related to incremental_collection_failed flag to allow for ExplicitGCInvokesConcurrent behaviour where we do not want a failing scavenge to bail to a stop-world collection. Parameterized incremental_collection_will_fail() so we can selectively use, or not use, as appropriate, the statistical prediction at specific use sites. This essentially reverts the scavenge bail-out logic to what it was prior to some recent changes that had inadvertently started using the statistical prediction which can be noisy in the presence of bursty loads. Added some associated verbose non-product debugging messages.
Reviewed-by: johnc, tonyp

Summary: The Solaris Studio 12 update 1 C++ compiler was incorrectly re-ordering the reads of an object's mark word in oopDesc::forward_to_atomic(). This opened a small window where one thread could execute the successful CAS path even though another thread had already successfully forwarded the object. This could result in an object being copied twice. The code in oopDesc::forward_to_atomic() was changed to read the mark word once.
Reviewed-by: ysr, tonyp

Summary: Allow the eden to the expanded up to a point when the GC locker is active.
Reviewed-by: jwilhelm, johnc, ysr, jcoomes

7004925: CTW: assert(nbits == 32 || -(1 << nbits-1) <= x && x < ( 1 << nbits-1)) failed: value out of range
Summary: Set offset in register if it does not fit 13 bits.
Reviewed-by: iveresov

Summary: Tag allocated memory with a magic value and verify when releasing.
Reviewed-by: phh, stefank

Summary: Update minor version to 1.2 for jdk7
Reviewed-by: phh, dcubed

Summary: Fixed a race condition in the assertion caused by an unguarded, concurrent access to a GrowableArray object.
Reviewed-by: coleenp, dholmes, dsamersoff
Contributed-by: volker.simonis@gmail.com

Reviewed-by: twisti