6673975: Disable ZapUnusedHeapArea to reduce GC execution times of debug JVM's. Summary: Mangling the unused space is having an adverse affect on testing with fastdebug builds so turn it off by default. Reviewed-by: ysr, tonyp

Merge

6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO 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

6668743: CMS: Consolidate block statistics reporting code Summary: Reduce the amount of related code replication and improve pretty printing. Reviewed-by: jmasa

6621728: Heap inspection should not crash in the face of C-heap exhaustion Summary: Deal more gracefully with situations where C-heap scratch space cannot be had Reviewed-by: jmasa

6362677: Change parallel GC collector default number of parallel GC threads. 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

6642634: Test nsk/regression/b6186200 crashed with SIGSEGV Summary: Use correct allocation path in expand_and_allocate() so object's mark and p-bits are set as appropriate. Reviewed-by: jmasa, pbk

6665445: Backout change to CardTableModRefBS::resize_covered_region() Summary: Backed out part of cahnge for 6624765 because of nightly testing regressions. Reviewers below were for 6624765. Reviewed-by: ysr, apetrusenko

6621144: CMS: assertion failure "is_cms_thread == Thread::current()->is_ConcurrentGC_thread()" Summary: Take lock conditionally (in asynchronous mode only) when updating the dead-object map. Reviewed-by: jmasa

6624765: Guarantee failure "Unexpected dirty card found" Summary: In verification take into account partial coverage of a region by a card and expansion of the card table. Reviewed-by: ysr, apetrusenko

6659981: +ParallelRefProcEnabled crashes on single core platform Summary: Disable parallel reference processing when there are no worker threads Reviewed-by: apetrusenko, pbk, jmasa, tonyp

6624782: Bigapps crashes during CMS precleaning. Summary: Lowered optimization level for files instanceKlass.cpp and objArrayKlass.cpp Reviewed-by: ysr

Added tag jdk7-b25 for changeset 408b55da75b0

Added tag jdk7-b25 for changeset 41658053480c

Added tag jdk7-b25 for changeset bf2517e15f0c

Merge

Merge

6638501: Regression with Javac in JDK6 U4 b03? Summary: replace some String paths with File paths in Paths.java Reviewed-by: ksrini

6559315: Inconsistent non-standard Sun copyright in src/share/opensource/javac/doc/document.css Summary: Remove obsolete files Reviewed-by: mcimadamore

6668794: javac puts localized text in raw diagnostics 6668796: bad diagnostic "bad class file" given for source files Summary: Replace internal use of localized text with JCDiagnostic fragments; fix diagnostic for bad source file Reviewed-by: mcimadamore

6307187: clean up code for -Xlint:options Summary: introduce common code for handling one-of and any-of options Reviewed-by: mcimadamore

6668802: javac handles diagnostics for last line badly, if line not terminated by newline Summary: use CharBuffer.limit(), not the length of the backing array Reviewed-by: mcimadamore

4741726: allow Object += String Summary: remove code in line with restriction removed from JLS Reviewed-by: mcimadamore Contributed-by: michaelbailey0@gmail.com

6663588: Compiler goes into infinite loop for Cyclic Inheritance test case Summary: interplay between cyclic inheritance and tvar bounds hangs javac Reviewed-by: jjg