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