Summary: Let HeapRegionSeq manage the heap region and auxiliary data to decrease the amount of responsibilities of G1CollectedHeap, and encapsulate this work from other code.
Reviewed-by: jwilhelm, jmasa, mgerdin, brutisso

Reviewed-by: vlivanov, sla

Reviewed-by: tschatzl, ehelin, brutisso, coleenp, roland, iveresov
Contributed-by: stefan.karlsson@oracle.com, mikael.gerdin@oracle.com

8043029: Change 8037816 breaks HS build with older GCC versions which don't support diagnostic pragmas
8043164: Format warning in traceStream.hpp
Summary: Backport of main fix + two corrections, enables clang compilation, turns on format attributes, corrects/mutes warnings
Reviewed-by: kvn, coleenp, iveresov, twisti

Reviewed-by: morris, kvn

Reviewed-by: iveresov, kvn, iignatyev
Contributed-by: filipp.zhinkin@oracle.com

Reviewed-by: kvn, roland

Summary: added JNI exception pending check in several files under src/share/vm/prims directory
Reviewed-by: coleenp, minqi

Summary: Three tests added: 1) test stressing VirtualSpace by resizing it constantly 2) test running unit tests in several threads 3) test checking protected area in ReservedHeapSpace class
Reviewed-by: stefank, zgu
Contributed-by: aleksey.timofeev@oracle.com

7057939: jmap shows MaxNewSize=4GB when Java is using parallel collector
Summary: Major cleanup of the collectorpolicy classes
Reviewed-by: tschatzl, jcoomes

Summary: Use conservative assumptions of required alignment for the various garbage collector components into account when determining the maximum heap size that supports compressed oops. Using this conservative value avoids several circular dependencies in the calculation.
Reviewed-by: stefank, dholmes

Summary: Make tests query a new WhiteBox API to see if NMT detail is supported, and behave properly if it is not supported.
Reviewed-by: dholmes, coleenp

Reviewed-by: kvn

8013057: assert(_needs_gc || SafepointSynchronize::is_at_safepoint()) failed: only read at safepoint
Summary: Detect mmap() commit failures in Linux and Solaris os::commit_memory() impls and call vm_exit_out_of_memory(). Add os::commit_memory_or_exit(). Also tidy up some NMT accounting and some mmap() return value checking.
Reviewed-by: zgu, stefank, dholmes, dsamersoff

8013726: runtime/memory/ReserveMemory.java fails due to 'assert(bytes % os::vm_allocation_granularity() == 0) failed: reserve block size'
Summary: Fix regression test to work on all platforms
Reviewed-by: ctornqvi, dholmes

Summary: Make processing of minimum, initial and maximum heap size more intiutive by removing previous limitations on allowed values, and make error reporting consistent. Further, fix errors in ergonomic heap sizing.
Reviewed-by: johnc, jwilhelm, tamao

Summary: Reserved memory had PROT_READ+PROT_WRITE access on Linux/bsd, now changed to PROT_NONE.
Reviewed-by: dholmes, ctornqvi

Summary: Instead of terminating the VM, throw OutOfMemoryError exceptions.
Reviewed-by: coleenp, dholmes

Reviewed-by: kvn, vlivanov

Reviewed-by: kvn, vlivanov

Reviewed-by: kvn, vlivanov

Summary: Add convenience method in StringTable, add WhiteBox method and simple sanity test
Reviewed-by: mgerdin, zgu
Contributed-by: leonid.mesnik@oracle.com

Summary: Tests added for Reserve/Commit/Uncommit/Unreserve operations
Reviewed-by: zgu, mgerdin

Reviewed-by: kvn, vlivanov

Summary: Add WB API functions to enable better NMT testing
Reviewed-by: dholmes, zgu

Summary: Rename INCLUDE_ALTERNATE_GCS to INCLUDE_ALL_GCS and replace SERIALGC with INCLUDE_ALL_GCS.
Reviewed-by: coleenp, stefank

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>

Reviewed-by: coleenp, mgronlun, rbackman

Reviewed-by: brutisso, sla, mgerdin

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