Summary: Avoid overflow list walk in CMS & ParNew when it is unnecessary. Fix a couple of correctness issues, including a C-heap leak, in ParNew at the intersection of promotion failure, work queue overflow and object array chunking. Add stress testing option and related assertion checking.
Reviewed-by: jmasa

Summary: A bunch of performance optimizations to decrease GC pause times in G1.
Reviewed-by: apetrusenko, jmasa, iveresov

6791815: Fix for 6471657 can cause deadlock on non-Solaris platforms when initializing direct buffer support
Summary: Place the state transition inside the loop so that the VMThread could proceed for safepoint
Reviewed-by: dholmes, never, acorn

Summary: Fix compilation errors from latest gcc in CC_INTERP including offending missing void* cast.
Reviewed-by: xlu

Summary: The CMS concurrent precleaning and concurrent marking phases should work around classes that are undergoing redefinition.
Reviewed-by: ysr, dcubed

Reviewed-by: phh, xlu

Summary: Added safe_object_iterate() for use by JMapPerm.
Reviewed-by: tonyp

Summary: VM support for deadlock fix. Library fix in 4735126. See API proposal.
Reviewed-by: dholmes, blacklion

Summary: Fixed the wrong cast between types since more restrictions are imposed by gcc 4.3.2
Reviewed-by: jcoomes, acorn, phh, never

6787106: Hotspot 32 bit build fails on platforms having different definitions for intptr_t & int32_t
Summary: Avoid casting between int32_t and intptr_t specifically for MasmAssembler::movptr in 32 bit platforms.
Reviewed-by: jrose, kvn

Summary: Using UseOSErrorReporting will provide both an hs_err file and a crash dump or debug launch and works better.
Reviewed-by: xlu, acorn, poonam

Summary: Replaces SharedRuntime::f2i et al with versions that should work
Reviewed-by: never
Contributed-by: gbenson@redhat.com

6786340: hs14b09a pit: a lot of tests failed in "-server -Xcomp" on solaris-amd64 using fastdebug bits
Summary: Fixes the nsk-jdi PIT failures introduced by fix for 6739363
Reviewed-by: kvn, coleenp

Summary: Relax the assert for Sparc.
Reviewed-by: never

Reviewed-by: jmasa, tonyp

Reviewed-by: jmasa, tonyp

Summary: remove Universe::_fillerArrayKlassObj and associated code
Reviewed-by: jmasa, tonyp

Summary: Restore the code which sets a control edge for a klass load node.
Reviewed-by: never

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

Reviewed-by: ysr, mchung

Reviewed-by: kvn, jrose

Reviewed-by: rasbold, jrose, kvn

Reviewed-by: rasbold, kvn

Reviewed-by: jmasa

Reviewed-by: jmasa

Reviewed-by: apetrusenko, ysr

Summary: DTrace probe "contended-exit" should be fired before unparking object, or context could be lost. Probe firing was moved to proper place.
Reviewed-by: coleenp, kamg

6736295: SIGSEGV in product jvm, assertion "these are the only valid states during a mark sweep" in fastdebug
Summary: Restructured the code in the perm gen allocation retry loop so as to avoid "safepoint-blocking" on locks, in this case the Heap_lock, while holding uninitialized allocated heap storage.
Reviewed-by: apetrusenko, iveresov, jcoomes, jmasa, poonam

Summary: Make reguard_stack change access to RW, not execute and use os::protect_memory with the new parameter when change needed to X.
Reviewed-by: acorn, jcoomes

Summary: more and better #line and #define directives in the generated code; ADLC itself accepts #line directives
Reviewed-by: never, kvn

Summary: Print out JDK/JRE version that hotspot knows about.
Reviewed-by: kamg, blacklion, acorn, alanb

Summary: temporarily turn off LinkWellKnownClasses optimization
Reviewed-by: never, kvn

Summary: Fix adds support for verifying arguments with -Xcheck:jni.
Reviewed-by: coleenp

Summary: In os::Linux::rebuild_cpu_to_node_map() fix the size of the CPU bitmap. Fixed arithmetic in MutableNUMASpace::adaptive_chunk_size() that could cause overflows and underflows of the chunk_size variable.
Reviewed-by: apetrusenko

Summary: Create new "eliminated" BoxLock node for monitor debug info when corresponding locks are eliminated.
Reviewed-by: never

Summary: Renamed Reference{Policy,Pocessor} methods from snap{,_policy}() to setup{,_policy}()
Reviewed-by: apetrusenko

Reviewed-by: kvn, jrose

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