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

Summary: After appropriate testing, we need to turn on EnableMethodHandles and EnableInvokeDynamic by default.
Reviewed-by: never, kvn, jrose, phh

Reviewed-by: never, phh, stefank, kamg, dholmes, coleenp

Reviewed-by: kvn, coleenp, twisti, stefank

6627787: CMS: JVM refuses to start up with -Xms16m -Xmx16m
7000125: CMS: Anti-monotone young gen sizing with respect to maximum whole heap size specification
7027529: CMS: retire CMSUseOldDefaults flag
Summary: Simplify CMS heap sizing code, relying on ergonomic initial sizing consistent with other collectors for the most part, controlling only young gen sizing to rein in pause times. Make CMS young gen sizing default statically cpu-dependant. Remove inconsistencies wrt generation sizing and policy code, allowing for the fixing for 6627787 and 7000125. For 7027529, retire the flag CMSUseOldDefaults which had been introduced as a bridge from JDK 5 to JDK 6 a number of years ago.
Reviewed-by: brutisso, poonam

Summary: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
Reviewed-by: johnc, jmasa, ysr

Summary: This implements adaptive tiered compilation policy.
Reviewed-by: kvn, never

Summary: Put UseFastLocking test under #ifdef COMPILER1
Reviewed-by: kvn, phh, never, dcubed

Reviewed-by: phh, kvn

Summary: Bulk zeroing reduction didn't work with G1, because arraycopy would call pre-barriers on uninitialized oops. The solution is to have version of arraycopy stubs that don't have pre-barriers. Also refactored arraycopy stubs generation on SPARC to be more readable and reduced the number of stubs necessary in some cases.
Reviewed-by: jrose, kvn, never

Reviewed-by: dsamersoff, kamg, hosterda

Summary: Turn off biased locking if !UseFastLocking or UseHeavyMonitors options are requested.
Reviewed-by: phh, never, dcubed, dholmes

Summary: Normally compressed oops is enabled when the maximum heap size is under a certain limit, except when G1 is also enabled. Remove this limitation. Also re-enable GCBasher testing with G1 on 64 bit windows in jprt.
Reviewed-by: jcoomes, brutisso, tonyp

Summary: Implement support for ParallelRefProcEnabled in the reference processing that takes place at the end of G1 concurrent marking.
Reviewed-by: tonyp, ysr

Summary: Currently escape analysis is turned off when EnableInvokeDynamic is true.
Reviewed-by: jrose, kvn

Reviewed-by: mchung, acorn