Reviewed-by: brutisso, tschatzl

Reviewed-by: fparain, dcubed, mdoerr
Contributed-by: NBill Pittore <bill.pittore@oracle.com>

Reviewed-by: brutisso, mgerdin, tschatzl

Summary: Splitting out a g1 allocator class to simply specialized allocators which can associate each allocation with a given context.
Reviewed-by: mgerdin, brutisso

Reviewed-by: mgerdin, tschatzl, jmasa

Summary: Removed MemTracker::shutdown() call to avoid deadlock
Reviewed-by: minqi, ctornqvi

8055635: Missing include in g1RegionToSpaceMapper.hpp results in unresolved symbol of fastdebug build without precompiled headers
Reviewed-by: mgerdin, ehelin

Summary: Fixed memory leak in NMT by baselining memory in c heap instead of an arena.
Reviewed-by: coleenp, minqi

Summary: If large pages are enabled and configured in Linux, the VM always pre-commits the entire space. The VM fails verification of the commit of the initial heap because some internal data structure marked all memory pages of the heap as committed during initialization. This makes the code think that we attempted a double-commit during first allocation of the heap. Remove the initial marking of memory pages of the heap to committed.
Reviewed-by: mgerdin

Summary: Allow G1 to decommit memory of arbitrary regions within the heap and their associated auxiliary data structures card table, BOT, hot card cache, and mark bitmaps.
Reviewed-by: mgerdin, brutisso, jwilhelm

8055061: assert at share/vm/services/virtualMemoryTracker.cpp:332 Error: ShouldNotReachHere() when running NMT tests
Summary: Handled CDS mapping region and added test for the scenario
Reviewed-by: coleenp, ctornqvi

Summary: Refactored emptyStack to a static member of NativeCallStack, which is accessible in minimal build.
Reviewed-by: coleenp, dholmes

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: tschatzl, jmasa

Summary: Re-enabled warning as launcher change reached promotion build
Reviewed-by: hseigel, coleenp

Summary: negative verify_guards when testing for corruption
Reviewed-by: sla, fparain

Summary: Wrapped memory with standard bounds checking "GuardedMemory".
Reviewed-by: zgu, fparain, dcubed

Summary: Dynamic allocate _reserved_regions instead of static object to avoid racing during process exit
Reviewed-by: dholmes, coleenp

Reviewed-by: mgerdin, bdelsart, jcoomes

Summary: Fixup the remaining variable names.
Reviewed-by: tonyp, jwilhelm

Summary: The verification code that checked whether no bitmap mark had been found re-read HeapRegion::end() after the check on the bitmap. Concurrent humongous object allocation could have changed HeapRegion::end() in the meantime. Fix this by using the actual end of the region instead of HeapRegion::end() for comparison.
Reviewed-by: brutisso, jmasa

Summary: Enable shrinking within the heap by removing some code added for JDK-8054818. Enable the test case that checks that again too.
Reviewed-by: jwilhelm, jmasa

Summary: Misplacement of #if INCLUE_CDS, typos, unnecessary C string duplication
Reviewed-by: dholmes, ccheung

Reviewed-by: jmasa, jwilhelm

8056175: Change "8048150: Allow easy configurations for large CDS archives" triggers conversion warning with older GCC
Summary: cast the result of the conversion to uintx
Reviewed-by: ccheung, coleenp
Contributed-by: volker.simonis@gmail.com

Reviewed-by: jwilhelm, jmasa

Reviewed-by: pliden, jmasa

Summary: Correct fix for allowing BootstrapMethods attribute with an empty bootstrap_methods table.
Reviewed-by: coleenp, ctornqvi, hseigel

Summary: Estimate the size of shared archive based on the number of classes in the classlist file
Reviewed-by: iklam, jiangli, minqi, dholmes

Summary: Because anonymous classes are not in the system dictionary, we have to set 'unloading_occurred' based on 'CLDG::do_unloading()'. Added jtreg test.
Reviewed-by: kvn, coleenp

Summary: Require to specify UnlockExperimentalVMOptions flag together with UseRTMLocking flag on un-patched systems where CPUID allows it but is unsupported otherwise.
Reviewed-by: iveresov, fzhinkin

Summary: Cleaned up CDS to be more configurable, maintainable and extensible
Reviewed-by: dholmes, coleenp, acorn, mchung

Summary: Extend the WhiteBox API to provide information about the size and age of objects. Further add a mechanism to trigger a young GC.
Reviewed-by: tschatzl, sjohanss
Contributed-by: NLeonid Mesnik <leonid.mesnik@oracle.com>

Summary: Enhance scalability of native memory tracking
Reviewed-by: coleenp, ctornqvi, gtriantafill

Summary: Fixed parfait initialization issue.
Reviewed-by: kvn, twisti

Summary: Remove check that causes the VerifyError
Reviewed-by: dholmes, coleenp, acorn

Reviewed-by: brutisso, tschatzl

Summary: Fixed parfait initialization issue.
Reviewed-by: kvn, twisti

Summary: Fix stackmap matching for branches.
Reviewed-by: coleenp, lfoltan, acorn

8049252: VerifyStack logic in Deoptimization::unpack_frames does not expect to see invoke bc at the top frame during normal deoptimization
Summary: Add missing check for reexecute flag to VerifyStack code.
Reviewed-by: roland