7110586: C2 generates incorrect results Summary: Exact limit of empty loop calculated incorrectly. Reviewed-by: iveresov, never

7118648: disable compressed oops by default on MacOS X until 7118647 is fixed Summary: UseCompressedOops is false by default on MacOS X; can still be set manually Reviewed-by: jmelvin, kvn, dholmes

Merge

Merge

7117748: SA_APPLE_BOOT_JAVA and ALWAYS_PASS_TEST_GAMMA settings should not be required on MacOS X Summary: Replace SA_APPLE_BOOT_JAVA with logic that checks the boot JDK for the location of JDI classes. ALWAYS_PASS_TEST_GAMMA is true by default on Darwin. Reviewed-by: kvn, swingler

7117389: Add a framework for vendor-specific command line switch extensions to Hotspot Summary: Add a file, globals_ext.hpp, containing a null interface, to be replaced by a vendor in altsrc as needed. Reviewed-by: coleenp, kamg, dholmes, johnc, jrose

7117536: new hotspot build - hs23-b08 Reviewed-by: johnc

Added tag hs23-b07 for changeset 3ba6557b91f7

Merge

Merge

7112997: Remove obsolete code ResetObjectsClosure and VerifyUpdateClosure Summary: Remove obsolete code. Reviewed-by: brutisso, ysr, jcoomes

7106024: CMS: Removed unused code for precleaning in remark phase Summary: Remove dead code. Reviewed-by: stefank, ysr

7112743: G1: Reduce overhead of marking closure during evacuation pauses Summary: Parallelize the serial code that was used to mark objects reachable from survivor objects in the collection set. Some minor improvments in the timers used to track the freeing of the collection set along with some tweaks to PrintGCDetails. Reviewed-by: tonyp, brutisso

7114303: G1: assert(_g1->mark_in_progress()) failed: shouldn't be here otherwise Summary: Race between the VM thread reading G1CollectedHeap::_mark_in_progress and it being set by the concurrent mark thread when concurrent marking is aborted by a full GC. Have the concurrent mark thread join the SuspendibleThreadSet before changing the marking state. Reviewed-by: tonyp, brutisso

6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads Summary: Select number of GC threads dynamically based on heap usage and number of Java threads Reviewed-by: johnc, ysr, jcoomes

Merge

7111795: G1: Various cleanups identified during walk through of changes for 6484965 Summary: Various cleanups and formatting changes identified during a code walk through of the changes for 6484965 ("G1: piggy-back liveness accounting phase on marking"). Reviewed-by: brutisso, tonyp

7110173: GCNotifier::pushNotification publishes stale data. Summary: GCNotifier::pushNotification() references GCMemoryManager::_last_gc_stat but is called from GCMemoryManager::gc_end() before GCMemoryManager::_last_gc_stat is set up using the values in GCMemoryManager::_current_gc_stat. As a result the GC notification code accesses unitialized or stale data. Move the notification call after GCMemoryManager::_las_gc_stat is set, but inside the same if-block. Reviewed-by: poonam, dholmes, fparain, mchung

7110718: -XX:MarkSweepAlwaysCompactCount=0 crashes the JVM Summary: Interpret MarkSweepAlwaysCompactCount < 1 as never do full compaction Reviewed-by: ysr, tonyp, jmasa, johnc

7097002: G1: remove a lot of unused / redundant code from the G1CollectorPolicy class Summary: Major cleanup of the G1CollectorPolicy class. It removes a lot of unused fields and methods and also consolidates replicated information (mainly various ways of counting the number of CSet regions) into one copy. Reviewed-by: johnc, brutisso

Merge

7116730: Revert 7116481: Commercial features in Hotspot must be gated by a switch Summary: Revert 7116481 to current hsx/hotspot-main Reviewed-by: kamg

7116481: Commercial features in Hotspot must be gated by a switch Summary: Add -XX:+UnlockCommercialVMOptions to gate use of commercial feature switches in the same way as -XX:UnlockDiagnosticVMOptions gates use of diagnostic feature switches. Reviewed-by: jwilhelm, kamg

7116189: Export JVM_SetNativeThreadName from Hotspot Summary: Added JVM_SetNativeThreadName to linker mapfiles on Solaris and Linux. Reviewed-by: dcubed, dholmes Contributed-by: michael.x.mcmahon@oracle.com

Merge

7112308: Fix Visual Studio build for precompiled header Summary: Add the new path to precompiled.hpp in the project make file Reviewed-by: coleenp, dholmes, brutisso Contributed-by: rbackman <rickard.backman@oracle.com>

Merge

7110017: is_headless_jre should be updated to reflect the new location of awt toolkit libraries Reviewed-by: dholmes, dsamersoff Contributed-by: Chris Hegarty <chris.hegarty@oracle.com>

7113503: Bump the hs23 build number to 07 Reviewed-by: johnc Contributed-by: alejandro.murillo@oracle.com

Merge