Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: Njmasa &lt;jon.masamitsu@oracle.com&gt;, stefank &lt;stefan.karlsson@oracle.com&gt;, mgerdin &lt;mikael.gerdin@oracle.com&gt;, never <tom.rodriguez@oracle.com>

7178363: G1: Remove the serial code for PrintGCDetails and make it a special case of the parallel code
Summary: Also reviewed by vitalyd@gmail.com. Introduced the WorkerDataArray class. Fixed some minor logging bugs.
Reviewed-by: johnc, mgerdin

6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: NJohn Rose &lt;john.r.rose@oracle.com&gt;, Christian Thalinger &lt;christian.thalinger@oracle.com&gt;, Michael Haupt <michael.haupt@oracle.com>

Summary: change hotspot flag to be unsigned
Reviewed-by: dholmes, sla, fparain, brutisso
Contributed-by: NChris Dennis <cdennis@terracottatech.com>

Summary: Send warnings to output stream
Reviewed-by: dholmes, fparain

7151532: DCmd for hotspot native memory tracking
Summary: Implementation of native memory tracking phase 1, which tracks VM native memory usage, and related DCmd
Reviewed-by: acorn, coleenp, fparain

Reviewed-by: mgerdin, johnc

Summary: Simple change to the SE-Embedded build rules that should not affect any other OpenJDK users.
Reviewed-by: kvn, dholmes

Reviewed-by: dholmes, kamg

Summary: disabling default config files if -XX:-ReadDefaultConfigFiles
Reviewed-by: phh, jrose, dcubed, dholmes

7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
Summary: Provide custom error messages for locked commercial feature options which are not first unlocked.
Reviewed-by: dcubed, jcoomes, kamg
Contributed-by: james.melvin@oracle.com

Summary: Don't set CompilationPolicyChoice with AggressiveHeap
Reviewed-by: never

Summary: Add an internal testing API to HotSpot to enable more targeted testing of vm functionality
Reviewed-by: phh, dholmes

Summary: Relax the assertion to simply check for COOP mode rather than an exact address.
Reviewed-by: coleenp, kvn, phh, dcubed
Contributed-by: james.melvin@oracle.com

Summary: Removed old tiered code
Reviewed-by: never, kvn

Reviewed-by: phh, jmasa

Summary: disable UseAdaptiveSizePolicy with the CMS and ParNew
Reviewed-by: johnc, brutisso

Reviewed-by: acorn, phh, dcubed, sspitsyn

Summary: Nested locks elimination done before lock nodes expansion by looking for outer locks of the same object.
Reviewed-by: never, twisti

Summary: UseCompressedOops is false by default on MacOS X; can still be set manually
Reviewed-by: jmelvin, kvn, dholmes

Summary: Exercise C2 more in tiered mode with Xcomp
Reviewed-by: kvn, never

Reviewed-by: kvn

Summary: Integrate bsd-port/hotspot and macosx-port/hotspot changes as of 2011.09.29.
Reviewed-by: kvn, dholmes, never, phh
Contributed-by: NChristos Zoulas &lt;christos@zoulas.com&gt;, Greg Lewis &lt;glewis@eyesbeyond.com&gt;, Kurt Miller &lt;kurt@intricatesoftware.com&gt;, Alexander Strange &lt;astrange@apple.com&gt;, Mike Swingler &lt;swingler@apple.com&gt;, Roger Hoover &lt;rhoover@apple.com&gt;, Victor Hernandez &lt;vhernandez@apple.com&gt;, Pratik Solanki <psolanki@apple.com>

Reviewed-by: kvn, twisti, jrose
Contributed-by: NKurt Miller &lt;kurt@intricatesoftware.com&gt;, Greg Lewis &lt;glewis@eyesbeyond.com&gt;, Jung-uk Kim &lt;jkim@freebsd.org&gt;, Christos Zoulas &lt;christos@zoulas.com&gt;, Landon Fuller &lt;landonf@plausible.coop&gt;, The FreeBSD Foundation &lt;board@freebsdfoundation.org&gt;, Michael Franz &lt;mvfranz@gmail.com&gt;, Roger Hoover &lt;rhoover@apple.com&gt;, Alexander Strange <astrange@apple.com>

Summary: changes necessary for some JSR292 ports
Reviewed-by: jrose, dholmes

Summary: Support interleaving on NUMA systems for collectors that don't have NUMA-awareness.
Reviewed-by: iveresov, ysr
Contributed-by: NTom Deneau <tom.deneau@amd.com>

Summary: Select number of GC threads dynamically based on heap usage and number of Java threads
Reviewed-by: johnc, ysr, jcoomes

Reviewed-by: dholmes, never, jwilhelm, kvn

Reviewed-by: dholmes, never, jwilhelm, kvn

Summary: It turns out that there is no need to explicitly stop CMS since the JVM is taken down at a terminal safepoint during which CMS threads are (terminally) inactive. This  will need to be revised if and when we evolve in the future to a point where we allow JVM reincarnation in the same process, but those changes will be much more sweeping than just terminating CMS threads. The unused ::stop() methods will be removed in a separate CR. Also include in this CR is the fix for a small typo in the spelling of UseGCLogFileRotation in a message in arguments.cpp, brought to our attention by Rainer Jung and reviewed by minqi.
Reviewed-by: johnc, jwilhelm

Summary: supply optinal flags to realize gc log rotation
Reviewed-by: ysr, jwilhelm

Summary: Change call to Abstract_VM_Version::vm_info_string to VM_Version::vm_info_string so it cna be overridden by the arch specific VM_Version class
Reviewed-by: bobv, phh

Summary: Expand the old gen in bigger increments
Reviewed-by: jmasa

Reviewed-by: kvn, iveresov

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

Reviewed-by: skannan

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

Reviewed-by: twisti

Reviewed-by: ysr, johnc, poonam

Reviewed-by: kvn, iveresov