Summary: Tune C2 flags default values for performance.
Reviewed-by: never, phh, iveresov, jmasa, ysr

Summary: When using compressed oops, rather than chaining the overflowed grey objects' pre-images through their klass words, we use GC-worker thread-local overflow stacks.
Reviewed-by: jcoomes, jmasa

Summary: Update the HS15 Build number to 04
Reviewed-by: jcoomes

6822333: _call_stub_compiled_return address handling in SA is broken causing jstack to hang occasionally
Reviewed-by: kvn, twisti

Summary: Add 2 news classes to create VC8 and VC9 projects
Reviewed-by: apetrusenko, xlu

Summary: Used the outer loop frequency in frequencies checks in RA.
Reviewed-by: never, twisti

Reviewed-by: kvn, phh

Summary: Make object_iterate() traverse the perm gen
Reviewed-by: apetrusenko, tonyp

Reviewed-by: iveresov, tonyp

Summary: Add executable parameters to reserve_memory and commit_memory to reduce executable memory to only the Code Heap.
Reviewed-by: xlu, kvn, acorn

Reviewed-by: xlu, mchung

Summary: Change create_vm() to load and initialize StringValue rather than String.
Reviewed-by: kvn

Reviewed-by: kvn

Summary: Fixed SuperWord scheduling of memory operations.
Reviewed-by: kvn, never

6805522: Server VM fails with assertion (block1->start() != block2->start(),"successors have unique bcis")
Reviewed-by: kvn

Summary: Small fixes to sort out some verbosegc-related incorrectness and a failure
Reviewed-by: apetrusenko

Summary: preparatory but separable changes for method handles
Reviewed-by: kvn, never

Summary: Resetting the invocation counter for a method invocation event was setting count to zero for CompileThreshold=1, making it look like a never executed method.
Reviewed-by: phh, kamg, acorn, never

Reviewed-by: coleenp, pbk, xlu, alanb

Reviewed-by: kamg, coleenp

Summary: Call make_block_at() with the original handler limits.
Reviewed-by: never

Summary: We should mark the regions that continue humongous regions as live if the first region is live.
Reviewed-by: tonyp

Summary: Allow Hotspot builds with latest Windows SDK 6.1 on 64bit Windows 2003
Reviewed-by: ohair, tbell, jcoomes

Summary: Introduces two flags, -XX:-/+G1EnableParallelRSetUpdating and -XX:-/+G1EnableParallelRSetScanning, to turn on/off the "band aid" fix that serializes RSet updating / scanning during GCs.
Reviewed-by: iveresov

Summary: Enabled full verification for humongous regions. Also made sure that the VerifyAfterGC works with deferred updates and G1HRRSFlushLogBuffersOnVerify.
Reviewed-by: tonyp

6728271: G1: Cleanup G1CollectedHeap::get_gc_alloc_regions()
Summary: It allows the last half-full region to be allocated to during a GC to be reused during the next GC.
Reviewed-by: apetrusenko, jcoomes

Summary: After attaching, de-attaching SA from a process, the second time attach() call fails. This happens because in VM.initialize(), Universe does not get re-initialized before it is accessed.
Reviewed-by: swamyv