Summary: oop stored in unsafely in Lscratch noticed by visual inspection will not be updated by GC.
Reviewed-by: kamg, never, kvn

6774607: SIGSEGV or (!is_null(v),"oop value can never be zero") assertion when running with CMS and COOPs
Summary: Use the more permissive set_klass_or_null() and klass_or_null() interfaces in ParNew's workqueue overflow code that manipulates the klass-word.
Reviewed-by: coleenp

Summary: The default value of UseVMInterruptibleIO is changed to false for JDK 7, but the default isn't changed for JDK 6 and earlier.
Reviewed-by: never, acorn, dholmes, kamg, alanb

Summary: Add test for biased locking epoch before walking own thread stack in case of rare race
Reviewed-by: phh, never

Summary: For current soft-ref clearing policies, we can decide at marking time if a soft-reference will definitely not be cleared, postponing the decision of whether it will definitely be cleared to the final reference processing phase. This can be especially beneficial in the case of concurrent collectors where the marking is usually concurrent but reference processing is usually not.
Reviewed-by: jmasa

Summary: When we encounter marking stack overflow during precleaning of Reference lists, we were using the overflow list mechanism, which can cause problems on account of mutating the mark word of the header because of conflicts with mutator accesses and updates of that field. Instead we should use the usual mechanism for overflow handling in concurrent phases, namely dirtying of the card on which the overflowed object lies. Since precleaning effectively does a form of discovered list processing, albeit with discovery enabled, we needed to adjust some code to be correct in the face of interleaved processing and discovery.
Reviewed-by: apetrusenko, jcoomes

Summary: Remove duplicate files and add includeDB_gc_g1 file in windows Makefile
Reviewed-by: jcoomes, ysr

6773078: UseCompressedOops: assert(kid == 0L || s->_leaf->in(0) == 0L,"internal operands have no control")
Summary: Don't set the control edge of a klass load node.
Reviewed-by: never

Summary: Don't use the invariant local information if there are irreducible loops.
Reviewed-by: never

Summary: Removed lines in adm64.make with interpret.o and moved few constant strings from header files.
Reviewed-by: never

6660573: G1: BigApps Failure : guarantee(satb_mq_set.completed_buffers_num() == 0,"invariant")
Summary: When exiting a mutator thread is removed from the thread list before it has a chance to flush its SATB and barrier queues. If GC happens at this moment the objects that are refererred from these queues can be moved, which will case a crash. The fix is simply to flush the buffers before removing a thread from the list.
Reviewed-by: jcoomes, tonyp

Summary: Fixed missed entries.
Reviewed-by: never

Summary: minor cleanups & tuning of array.hpp, debug.cpp, growableArray.hpp, hashtable.cpp
Reviewed-by: kvn

Summary: low-level privileged sun.misc.Unsafe.defineAnonymousClass
Reviewed-by: kvn

Reviewed-by: kvn, jrose

Summary: Minor changes required to build using the Visual Studio 2008 compiler
Reviewed-by: kvn, ohair

Reviewed-by: xlu

Summary: Inline biased locking code in C2 ideal graph during macro nodes expansion
Reviewed-by: never

Summary: sparc code for gen_subtype_check was doing an ld for a compressed oop with the sign bit set so not comparing, leading to a ClassCastException.
Reviewed-by: phh, never, acorn, kvn, xlu

Reviewed-by: rasbold, kvn

Summary: post-register allocation pass that drives block layout by edge frequencies
Reviewed-by: never, kvn

Reviewed-by: rasbold, jrose

Summary: Add end-of-buffer indicator for paths used by the verifier
Reviewed-by: acorn, coleenp

Reviewed-by: ysr, tonyp

Reviewed-by: rasbold, kvn, kamg

Reviewed-by: kvn, rasbold

Summary: CDS hardcoded max c++ virtual method table increased
Reviewed-by: coleenp, xlu, jmasa

Reviewed-by: kvn

6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots
Summary: Include stack traces of all threads in the heap dump
Reviewed-by: alanb

Summary: Use SSE2 movdqu in arraycopy stubs on newest Intel's cpus
Reviewed-by: rasbold

6700107: java/lang/Class/forName/TooManyDimensions.java crashes with SIGSEGV in c2 compiler with fastdebug
Summary: objArrayKlass::compute_modifier_flags was unnecessarily recursive
Reviewed-by: kamg

Summary: suppress constant folding of double divides and multiplications on ia32
Reviewed-by: never

Summary: Avoid growth of a GrowableArray backend of HeapRegionSeq.
Reviewed-by: tonyp, jcoomes

Summary: add match rule for xor -1
Reviewed-by: never, kvn

Summary: Fixes assertions caused by one jvm_entry calling another, solved by refactoring code and modified gamma test.
Reviewed-by: dholmes, xlu

Summary: The per-lgrp chuck size can be incorrectly computed (causing an assertion failure) because of the non-associativity of the floating point operations. The fix is to rearrange the operations.
Reviewed-by: ysr

6673124: Runtime.availableProcessors / os::active_processor_count wrong if unused processor sets exist
Reviewed-by: acorn, dholmes

Summary: Introduce parallel heap verification in G1.
Reviewed-by: jcoomes, apetrusenko

Reviewed-by: rasbold, kvn

Summary: Update for files that have been modified starting July 2008
Reviewed-by: ohair, tbell