7035144: G1: nightly failure: Non-dirty cards in region that should be dirty (failures still exist...)
Summary: We should only undirty cards after we decide that they are not on a young region, not before. The fix also includes improvements to the verify_dirty_region() method which print out which cards were not found dirty.
Reviewed-by: johnc, brutisso

7034139: G1: assert(Thread::current()->is_ConcurrentGC_thread()) failed: only a conc GC thread can call this.
Summary: We were calling STS join and leave during a STW pause and we are not suppoesed to. I now only call those during  concurrent phase. I also added stress code in the non-product builds to force an overflows (the condition that ws uncovering the bug) to make sure it does not happen again.
Reviewed-by: johnc, brutisso

Summary: Don't enable TraceClassUnloading whne -Xloggc is specified.
Reviewed-by: tonyp, ysr

Summary: Avoid blocking in CompileBroker::compile_method_base() if the current thread holds the pending list lock.
Reviewed-by: never, brutisso, ysr

Summary: In G1 heap verification, we no longer scan perm to G1-collected heap refs as part of process_strong_roots() but rather in a separate explicit oop iteration over the perm gen. This preserves the original perm card-marks. Added a new assertion in younger_refs_iterate() to catch a simple subcase where the user may have forgotten a prior save_marks() call, as happened in the case of G1's attempt to iterate perm to G1 refs when verifying the heap before exit. The assert was deliberately weakened for ParNew+CMS and will be fixed for that combination in a future CR. Also made some (non-G1) cleanups related to code and comments obsoleted by the migration of Symbols to the native heap.
Reviewed-by: iveresov, jmasa, tonyp

Summary: Make the NUMA allocator behave properly with SHM and ISM large pages.
Reviewed-by: ysr

Summary: Added counters for jstat
Reviewed-by: tonyp, jwilhelm, stefank, ysr, johnc

Summary: Short-circuited an unnecessary double traversal of dirty card windows when iterating younger refs. Also renamed some cardtable methods for more clarity.
Reviewed-by: jmasa, stefank, poonam

Summary: Support transparent huge pages on Linux available since 2.6.38
Reviewed-by: iveresov, ysr
Contributed-by: aph@redhat.com

Summary: It introduces non-product cmd line parameter G1DummyRegionsPerGC which indicates how many "dummy" regions to allocate at the end of each GC. This allows the G1 heap to grow artificially and makes concurrent marking cycles more frequent irrespective of what the application that is running is doing. The dummy regions will be found totally empty during cleanup so this parameter can also be used to stress the concurrent cleanup operation.
Reviewed-by: brutisso, johnc

Summary: Use LIR_OprDesc::as_pointer_register() instead as_register/as_register_lo combination in the code changes for 7035117.
Reviewed-by: iveresov

Summary: use java_lang_String::create_from_platform_dependent_str() instead of java_lang_String::create_from_str() in JvmtiEnv::AddToSystemClassLoaderSearch()
Reviewed-by: dcubed

Summary: Missing parentheses around a casted expression and some missing casts were causing build failures with the jdk6 build tools.
Reviewed-by: kvn, brutisso

Summary: Make CDS reorder vtables so that dump time vtables match run time order, so when redefine classes reinitializes them, they aren't in the wrong order.
Reviewed-by: dcubed, acorn

Summary: Removed the unused clear argument to various cardtbale methods and unused mod_oop_in_space_iterate method. Unrelated to synopsis, added  a pair of clarifying parens in AllocationStats constructor.
Reviewed-by: brutisso, jcoomes

Summary: Passing NULL as MINIDUMP_EXCEPTION_INFORMATION when calling MiniDumpWriteDump when crash is due to assertion instead of real exception to avoid creating zero-length mini dump file.
Reviewed-by: acorn, dcubed, poonam, coleenp

Reviewed-by: gbenson, twisti
Contributed-by: NXerxes Ranby <xerxes@zafena.se>

Summary: Eliminate the race condition.
Reviewed-by: kvn

Summary: Allow long type for offset in G1 code in compiler implementations of Unsafe.getObject
Reviewed-by: never, iveresov

Summary: Make sure cnt doesn't become negative and integer overflow doesn't happen.
Reviewed-by: kvn, twisti

Summary: This adds support for JSR 292 to Zero.
Reviewed-by: twisti
Contributed-by: NGary Benson <gbenson@redhat.com>

Summary: Allow for one or more fillInStackTrace frames to be skipped
Reviewed-by: mchung, kvn

Summary: the failure is caused by uninitialized bci number
Reviewed-by: iveresov

Summary: The upcoming processors from AMD are the first that support 3dnow prefetch without supporting the 3dnow instruction set.
Reviewed-by: kvn
Contributed-by: tom.deneau@amd.com

Summary: Add the /debug flag to the linker command in Visual Studio
Reviewed-by: mgronlun, poonam, hosterda

Summary: Make MH verification tests more correct, robust, and informative.  Fix lingering symbol refcount problems.
Reviewed-by: twisti

Reviewed-by: kvn

Summary: Fix -XX:+VerifyOops
Reviewed-by: kvn, never

Summary: Add new policy for one iteration loops (mostly formal pre- loops).
Reviewed-by: never

Reviewed-by: iveresov

Reviewed-by: skannan

Summary: ignore UseParallel{OldGCDensePrefix,OldGCCompacting,DensePrefixUpdate}
Reviewed-by: jwilhelm, brutisso

Summary: catch errors during the compile-time processing of method handles; back out cleanly
Reviewed-by: twisti

Summary: Improve error message formatting to give more information to user.  Also, catch a corner case related to 6930553 and 6844449.
Reviewed-by: kvn

Reviewed-by: twisti

Reviewed-by: ysr, johnc, poonam

Summary: A referent object that is only weakly reachable at the start of concurrent marking but is re-attached to the strongly reachable object graph during marking may not be marked as live. This can cause the reference object to be processed prematurely and leave dangling pointers to the referent object. Implement a read barrier for the java.lang.ref.Reference::referent field by intrinsifying the Reference.get() method, and intercepting accesses though JNI, reflection, and Unsafe, so that when a non-null referent object is read it is also logged in an SATB buffer.
Reviewed-by: kvn, iveresov, never, tonyp, dholmes

Summary: Swap checks: check for regular memory slice first and keep input phi.
Reviewed-by: never

Reviewed-by: kvn, iveresov

Reviewed-by: kvn