Summary: Under certain circumstances a safepoint could happen between a JavaThread object being created and that object being added to the Java threads list. This could cause the active field of that thread's SATB queue to get out-of-sync with respect to the other Java threads. The solution is to activate the SATB queue, when necessary, before adding the thread to the Java threads list, not when the JavaThread object is created. The changeset also includes a small fix to rename the surrogate locker thread from "Surrogate Locker Thread (CMS)" to "Surrogate Locker Thread (Concurrent GC)" since it's also used in G1.
Reviewed-by: iveresov, ysr, johnc, jcoomes

Reviewed-by: ysr

Summary: Vendor properties should be initialized after JDK version is determined.
Reviewed-by: kamg, ohair, dcubed, dholmes

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

6986270: guarantee(*bcp != Bytecodes::_monitorenter || exec_mode != Deoptimization::Unpack_exception) fails
Summary: Propagate the compiler type of the deopting method to vframeArrayElement::unpack_on_stack()
Reviewed-by: jrose, never

Reviewed-by: kvn, twisti

Summary: Print a more detailed error message for agent library load failure.
Reviewed-by: jcoomes, never, ohair, coleenp
Contributed-by: jeremymanson@google.com

Summary: Pass the check in ResourceObj() if _allocation value is already set and object is allocated on stack.
Reviewed-by: dholmes, johnc

Summary: A collection of portability improvements including shared code support for PPC, ARM platforms, software floating point, cross compilation support and improvements in error crash detail.
Reviewed-by: phh, never, coleenp, dholmes

Summary: Modify assembler code to check for 0 count for all copy routines.
Reviewed-by: never, ysr, jcoomes

Summary: Enable parallel compilation in C1
Reviewed-by: never, kvn

Summary: New optional flags to reduce inflated monitor cleanup times
Reviewed-by: chrisphi, dice

Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair

Summary: Add code to unmap stack guard area when thread is detached.
Reviewed-by: coleenp, kamg

Summary: Move creating stack guard pages in jni attach thread before potential java call rather than after. Also cleanup stack guard pages when jni attach fails
Reviewed-by: never, dholmes

Summary: Rename can_post_exceptions support to can_post_on_exceptions. Add support for should_post_on_exceptions flag to permit per JavaThread optimizations.
Reviewed-by: never, kvn, dcubed
Contributed-by: tom.deneau@amd.com

Summary: Deferred card marks are now flushed during the gc prologue. Parallel[Scavege,OldGC] and SerialGC no longer defer card marks generated by COMPILER2 as a result of ReduceInitialCardMarks. For these cases, introduced a diagnostic option to defer the card marks, only for the purposes of testing and diagnostics. CMS and G1 continue to defer card marks. Potential performance concern related to single-threaded flushing of deferred card marks in the gc prologue will be addressed in the future.
Reviewed-by: never, johnc

Reviewed-by: kvn, twisti

Summary: During the work for 6829187 we have fixed a number of basic bugs which are logically grouped with 6815692 and 6858164 but which must be reviewed and pushed separately.
Reviewed-by: kvn, never

Summary: If GC crashed with java thread involved, print out the java stack trace in error report
Reviewed-by: never, ysr, coleenp, dholmes

Summary: Call sun.jkernel.DownloadManager.setBootClassLoaderHook during the kernel VM initialization
Reviewed-by: alanb, coleenp, acorn

6889757: G1: enable card mark elision for initializing writes from compiled code (ReduceInitialCardMarks)
Summary: Defer the (compiler-elided) card-mark upon a slow-path allocation until after the store  and before the next subsequent safepoint; G1 now answers yes to can_elide_tlab_write_barriers().
Reviewed-by: jcoomes, kvn, never

Summary: remove over locking by VMThread on "is thread suspended?" check
Reviewed-by: dholmes, acorn, andrew

Summary: Make a special root-list for those few nmethods which might contain non-perm oops.
Reviewed-by: twisti, kvn, never, jmasa, ysr

Summary: Update copyright for files that have been modified in 2009, up to 07/09
Reviewed-by: tbell, ohair

Summary: Short-circuit gc-a-lot attempts by non-JavaThreads; SkipGCALot c'tor to elide re-entrant gc-a-lot attempts.
Reviewed-by: apetrusenko, jcoomes, jmasa, kamg

Summary: Remove usage of _highest_lock field in Thread so that is_lock_owned won't depend on the correct update of that field.
Reviewed-by: never, dice, acorn

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

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

6719149: Wrong "java/lang/String should not be loaded yet" assertion in fastdebug bits with UseStringCache
Summary: Assertion is invalid because java.lang.String may be initialized just before this assertion.
Reviewed-by: phh

Reviewed-by: dholmes, dcubed

Reviewed-by: dholmes, dcubed, jcoomes

Summary: Add mechanism to ignore unsupported flags for a set period of time
Reviewed-by: acorn, never, coleenp

Summary: Update copyright year for files that have been modified in 2008
Reviewed-by: ohair, tbell

Summary: Poke String.stringCacheEnabled during vm initialization
Reviewed-by: never

Summary: First mercurial integration of the code for the Garbage-First garbage collector.
Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr

Summary: Remove -XX:+CacheTimeMillis option and associated functionality
Reviewed-by: acorn, never

Summary: (for Serguei) Clean up use of No_Safepoint_Verifier in JVM TI
Reviewed-by: dcubed

Reviewed-by: sbohne, xlu