Reviewed-by: rasbold, kvn, kamg

Summary: Turn off c2 implicit null checking on windows and large pages specified.
Reviewed-by: jrose, xlu

Summary: Workaround for CompOops bug
Reviewed-by: coleenp

Summary: Escape Analysis fixes.
Reviewed-by: never, rasbold

Summary: Add mechanism to ignore unsupported flags for a set period of time
Reviewed-by: acorn, never, coleenp

Summary: allocate alignment-sized page(s) below java heap so that memory accesses at heap_base+1page give signal and cause an implicit null check
Reviewed-by: kvn, jmasa, phh, jcoomes

Summary: Update copyright year for files that have been modified in 2008
Reviewed-by: ohair, tbell

Summary: Make FreeChunk read markword instead of LSB in _klass pointer to indicate that it's a FreeChunk for compressed oops.
Reviewed-by: ysr, jmasa

Summary: comment out code that turns on compressed oops
Reviewed-by: never, phh

Summary: First mercurial integration of the code for the Garbage-First garbage collector.
Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr

Summary: Intrinsify java/util/Arrays.equals(char[], char[])
Reviewed-by: kvn, never

Summary: Need to subtract MaxPermSize from the total heap size when determining whether compressed oops is turned on.
Reviewed-by: jmasa, jcoomes, kvn

Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv
Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold

Summary: Remove -XX:+CacheTimeMillis option and associated functionality
Reviewed-by: acorn, never

Summary: Current EA code has several problems which have to be fixed.
Reviewed-by: jrose, sgoldman

Summary: Default values set by cms ergonomics are set with FLAG_SET_DEFAULT so down stream the values look like the default values and affect how later parameters are set.  Set these values with FLAG_SET_ERGO instead and adjust how later parameters are interpreted.
Reviewed-by: iveresov, apetrusenko, pbk, ysr

Summary: Use the same default number of GC threads as used by ParNewGC and ConcMarkSweepGC (i.e., the 5/8th rule).
Reviewed-by: ysr, tonyp

Reviewed-by: kvn, rasbold