8179302: Pre-resolve constant pool string entries and cache resolved_reference arrays in CDS archive.
8185924: G1NoteEndOfConcMarkClosure::doHeapRegion() does not do remembered set cleanup work for archive region.
Summary: Shared class' constant pool resolved_references array is cached.
Reviewed-by: coleenp, iklam, tschatzl
Contributed-by: jiangli.zhou@oracle.com, thomas.schatzl@oracle.com

8072061: Automatically determine optimal sizes for the CDS regions
Summary: See new C++ class MetaspaceClosure.
Reviewed-by: coleenp, jiangli, mseledtsov

8185262: Keep default logging for Metaspace OOM short and concise
Reviewed-by: iklam, coleenp

8185033: On Metaspace OOM, ChunkManager composition should be logged.
Reviewed-by: mgerdin, coleenp

8181917: Refactor UL LogStreams to avoid using resource area
Reviewed-by: ehelin, mlarsson

8183923: Get rid of FreeBlockDictionary and dithering
Reviewed-by: ehelin, kbarrett

8183552: Move align functions to align.hpp
Reviewed-by: stuefe, pliden

8178499: Remove _ptr_ and _size_ infixes from align functions
Reviewed-by: rehn, tschatzl

8178489: Make align functions more type safe and consistent
Reviewed-by: mgerdin, rehn

8183228: Fix optimized build after JDK-8170933
Reviewed-by: mgerdin, coleenp

8182554: Code for os::random() assumes long is 32 bits
Summary: And make updating the _rand_seed thread safe.
Reviewed-by: stuefe, kbarrett, stefank

8176132: -XX:+PrintSharedSpaces should be converted to use Unified Logging.
Summary: Converted -XX:+PrintSharedSpaces to -Xlog:cds=info
Reviewed-by: iklam, jiangli, mseledtsov

8170520: Make Metaspace ChunkManager counters non-atomic
Reviewed-by: mgerdin, coleenp

8170933: Cleanup Metaspace Chunk manager: Unify treatment of humongous and non-humongous chunks
Reviewed-by: mgerdin, coleenp

8005165: Remove CPU-dependent code in self-patching vtables
Reviewed-by: coleenp, stuefe, jiangli

8171008: Integrate AOT compiler into JDK
Reviewed-by: erikj, mchung, psandoz, coleenp, iklam, stefank, simonis
Contributed-by: Bharadwaj Yadavalli <bharadwaj.yadavalli@oracle.com>, Christian Thalinger <cthalinger@twitter.com>, Dean Long <dean.long@oracle.com>, Dmitrij Pochepko <dmitrij.pochepko@oracle.com>, Dmitry Chuyko <dmitry.chuyko@oracle.com>, Doug Simon <doug.simon@oracle.com>, Eric Caspole <eric.caspole@oracle.com>, Igor Ignatyev <igor.ignatyev@oracle.com>, Igor Veresov <igor.veresov@oracle.com>, John Rose <john.r.rose@oracle.com>, Morris Meyer <morris.meyer@oracle.com>, Niclas Adlertz <niclas.adlertz@oracle.com>, Rickard Backman <rickard.backman@oracle.com>

8170358: [REDO] 8k class metaspace chunks misallocated from 4k chunk freelist
Reviewed-by: mgerdin, coleenp, ehelin, stuefe

8170395: Metaspace initialization queries the wrong chunk freelist
Reviewed-by: mgerdin, pliden, stuefe

8170355: [BACKOUT] 8k class metaspace chunks misallocated from 4k chunk freelist
Reviewed-by: ehelin, stefank

8169931: 8k class metaspace chunks misallocated from 4k chunk freelist?
Reviewed-by: mgerdin, coleenp, ehelin, stuefe

8169870: CDS: "assert(partition_size <= size()) failed: partition failed" on 32 bit JVM
Summary: Exit the VM and report error if the second ReservedSpace() call also fails.
Reviewed-by: cjplummer, sspitsyn, iklam

8164921: Memory leaked when instrumentation.retransformClasses() is called repeatedly
Summary: Return Metablocks smaller than dictionary's dark matter.
Reviewed-by: mgerdin, sspitsyn, dsamersoff
Contributed-by: jon.masamitsu@oracle.com, coleen.phillimore@oracle.com

8078644: CDS needs to support JVMTI CFLH
Summary: Support posting CLFH for shared classes. Tests are contributed by Misha Seledtsov.
Reviewed-by: iklam, coleenp, acorn, dcubed, sspitsyn

8157907: Incorrect inclusion of atomic.hpp instead of atomic.inline.hpp
Summary: Remove atomic.inline.hpp and move the contents back into atomic.hpp
Reviewed-by: stefank, pliden, simonis

8141341: CDS should be disabled if JvmtiExport::should_post_class_file_load_hook() is true.
Summary: Disable loading shared class if JvmtiExport::should_post_class_file_load_hook is true.
Reviewed-by: iklam, acorn, sspitsyn

8024945: Remove check on minimum size of MetaspaceSize
Reviewed-by: kbarrett, tschatzl

8159056: [aix] Compressed class space not allocated in lower regions
Reviewed-by: dholmes, enevill

Merge

8152632: Rename LogHandle(...) to Log(...)
Reviewed-by: brutisso, mlarsson, rprotacio

8151845: Comment in globals.hpp for MetaspaceSize is incorrect.
Reviewed-by: drwhite, stefank

8026720: Remove the unused SpaceManager::mangle_freed_chunks
Reviewed-by: mgerdin, tschatzl, vlivanov

8151623: Zap freed Metaspace chunks in non-product binaries
Reviewed-by: stefank, jmasa

8149643: Remove check of counters in VirtualSpaceNode::inc_container_count
Reviewed-by: brutisso, kbarrett, mgerdin
Contributed-by: dmitry.dmitriev@oracle.com

8147913: Some runtime/CompressedOops tests fail on ARM64 product builds
Reviewed-by: jmasa, kbarrett

8147918: Rename develop_log_is_enabled() to log_develop_is_enabled()
Reviewed-by: dholmes, brutisso

8145628: hotspot metadata classes shouldn't use HeapWordSize or heap related macros like align_object_size
Summary: Use align_metadata_size, align_metadata_offset and is_metadata_aligned for metadata rather than align_object_size, etc. Use wordSize rather than HeapWordSize for metadata. Use align_ptr_up rather than align_pointer_up (all the related functions are ptr).
Reviewed-by: hseigel, jmasa, cjplummer

8145593: Clean up metaspaceShared.cpp
Reviewed-by: jiangli

8145092: Use Unified Logging for the GC logging
Summary: JEP-271. VM changes contributed by brutisso, test changes contributed by david.
Reviewed-by: sjohanss, david, brutisso
Contributed-by: bengt.rutisson@oracle.com, david.lindholm@oralce.com

8138983: Runtime: implement ranges for Shared*** flags
Summary: Implement ranges.
Reviewed-by: ddmitriev, dholmes, jiangli

8080775: Better argument formatting for assert() and friends
Reviewed-by: kbarrett, pliden

8085987: Vm crash "not long aligned" in nsk/stress/metaspace/jck60/jck6* tests
Summary: The word size being allocated needs to be rounded up.
Reviewed-by: jmasa, tbenson

8098821: Crash in system dictionary initialization with shared strings
Summary: map string regions after the compressed class base is known
Reviewed-by: iklam, dcubed
Contributed-by: coleen.phillimore@oracle.com, mikhailo.seledtsov@oracle.com

8015086: add interned strings to the shared archive.
Summary: Support saving interned strings in shared CDS archive.
Reviewed-by: coleenp, iklam, pliden

8035074: hs_err improvement: Add time zone information in the hs_err file
8026335: hs_err improvement: Print exact compressed oops mode and the heap base value.
8026331: hs_err improvement: Print if we have seen any OutOfMemoryErrors or StackOverflowErrors
Summary: Add requested things to hs_err file.
Reviewed-by: ctornqvi, dholmes

8081508: metaspace/shrink_grow/CompressedClassSpaceSize fails with OOM: Compressed class space
Summary: OOME is thrown even though there is metaspace available.
Reviewed-by: jmasa, kbarrett

8079792: GC directory structure cleanup
Reviewed-by: brutisso, stefank, david

8079091: Remove dictionary NULL check on common path of BlockFreeList methods
Reviewed-by: kbarrett, stefank, dholmes, jmasa

8076173: VirtualSpaceNode container_count() and container_count_slow() have different return types
Reviewed-by: pliden, stefank

8076073: shared: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
Reviewed-by: stefank, brutisso

8074459: Flags handling memory sizes should be of type size_t
Summary: Changed the type to size_t for flags that handles memory sizes
Reviewed-by: kbarrett, tschatzl

8071563: AARCH64 staging fail to build
Summary: Fixed build problem after merge 8064457 changes.
Reviewed-by: kvn, goetz

Merge

Merge

8064611: AARCH64: Changes to HotSpot shared code
Summary: Everything except cpu/ and os_cpu/
Reviewed-by: dholmes, goetz, dlong, coleenp, kvn

Merge

8067941: [TESTBUG] Fix tests for OS with 64K page size.
Reviewed-by: kvn, tschatzl, ctornqvi

8067187: -XX:MaxMetaspaceSize=20m -Xshare:dump caused JVM to crash
Summary: added check for the MaxMetaspaceSize. If it is less than the estimated required size, print an error and exit.
Reviewed-by: jiangli, mseledtsov, stefank

8064457: Introduce compressed oops mode disjoint base and improve compressed heap handling.
Summary: Introduce compressed oops mode disjoint base and improve compressed heap handling.
Reviewed-by: kvn, coleenp

8047290: Make Mutex::_no_safepoint_check_flag locks verify that this lock never checks for safepoint
Summary: Ensure consistent safepoint checking in Mutex/Monitor locking methods.
Reviewed-by: dholmes, dcubed, coleenp
Contributed-by: max.ockner@oracle.com

Merge

8065050: vm crashes during CDS dump when very small SharedMiscDataSize is specified
Summary: define minimum required sizes for the ro, rw, and md regions and make sure the specified sizes are not less than the minimum sizes
Reviewed-by: jiangli, dholmes, mseledtsov

8059492: Wrong spelling in assert: "Not initialied properly?"
Summary: Fixed typo in metaspace assert message
Reviewed-by: mgerdin
Contributed-by: aharlap <alexander.harlap.@oracle.com>

8064580: Move INCLUDE_CDS include section to the end of the include list
Reviewed-by: jwilhelm, brutisso, coleenp, dholmes

8038268: VM Crashes in MetaspaceShared::generate_vtable_methods while creating CDS archive with limiting SharedMiscCodeSize
Summary: estimate the minimum required size for the misc code region and check if the specified misc code region size meets the minimum size requirement
Reviewed-by: jiangli, dholmes

8049599: MetaspaceGC::_capacity_until_GC can overflow
Reviewed-by: jmasa, stefank

8048150: Allow easy configurations for large CDS archives
Summary: Estimate the size of shared archive based on the number of classes in the classlist file
Reviewed-by: iklam, jiangli, minqi, dholmes

8046070: Class Data Sharing clean up and refactoring
Summary: Cleaned up CDS to be more configurable, maintainable and extensible
Reviewed-by: dholmes, coleenp, acorn, mchung

Merge

8044107: Add Diagnostic Command to list all ClassLoaders
Reviewed-by: mgerdin, stefank

8042933: assert(capacity_until_gc >= committed_bytes) failed
Reviewed-by: stefank, jmasa

8038422: CDS test failed: assert((size % os::vm_allocation_granularity()) == 0) failed when limiting SharedMiscDataSize
Summary: In debug version, the assert is against os::vm_allocation_granularity(), but in initialization, we use os::vm_page_size() to align the allocation size. In windows, _vm_page_size and _vm_allocation_granularity may not be same. In debug version, the assert is against os::vm_allocation_granularity(), but in initialization, we use os::vm_page_size() to align the allocation size. In windows, _vm_page_size and _vm_allocation_granularity may not be same.
Reviewed-by: dholmes, iklam, jiangli, coleenp
Contributed-by: yumin.qi@oracle.com

Merge

8043639: Backout JDK-8034852: Shrinking of Metaspace high-water-mark causes incorrect OutOfMemoryErrors or back-to-back GCs
Reviewed-by: stefank, tschatzl

Merge

Merge

8034852: Shrinking of Metaspace high-water-mark causes incorrect OutOfMemoryErrors or back-to-back GCs
Reviewed-by: jmasa, pliden, stefank

8038212: Method::is_valid_method() check has performance regression impact for stackwalking
Summary: Only prune metaspace virtual spaces at safepoint so walking them is safe outside a safepoint.
Reviewed-by: mgerdin, mgronlun, hseigel, stefank

8037816: Fix for 8036122 breaks build with Xcode5/clang
Summary: Repaired or selectively disabled offending formats; future-proofed with additional checking
Reviewed-by: kvn, jrose, stefank

8042195: Introduce umbrella header orderAccess.inline.hpp.
Reviewed-by: dholmes, kvn, stefank, twisti

8038934: Remove prefix allocated_ from methods and variables in Metaspace
Reviewed-by: jmasa, coleenp

8037952: Remove code duplication in Metaspace::deallocate
Reviewed-by: tschatzl, pliden, coleenp

8036703: Add trace event with statistics for the metaspace chunk free lists
Reviewed-by: stefank, mgerdin, coleenp, egahlin

8036701: Add trace event when a metaspace throws out of memory error
Reviewed-by: stefank, mgerdin

8036699: Add trace event when a metaspace allocation fails
Reviewed-by: jmasa, stefank

8036698: Add trace event for updates to metaspace gc threshold
Reviewed-by: stefank, mgerdin

8034171: Remove use of template template parameters from binaryTreeDictionary.
Reviewed-by: mgerdin, jmasa
Contributed-by: matthias.baesken@sap.com

8026849: Fix typos in the GC code, part 2
Summary: Fixed typos in assert messages, flag descriptions and verbose messages
Reviewed-by: stefank, tschatzl

8025856: Fix typos in the GC code
Summary: Fix about 440 typos in comments in the VM code
Reviewed-by: mgerdin, tschatzl, coleenp, kmo, jcoomes

8031779: Assert in MetaspaceGC is always true
Reviewed-by: jmasa, jwilhelm

Merge

8029106: JVM crashes in Metachunk::Metachunk during parallel class redefinition (PrivateMLetController, anonymous-simple_copy_1)
Summary: Fixed overflow bug in VirtualSpaceNode::is_available
Reviewed-by: mgerdin, brutisso, coleenp, jmasa

8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains
Summary: Metaspace::contains cannot look at purged metaspaces while CMS concurrently deallocates them.
Reviewed-by: mgerdin, sspitsyn, jmasa

Merge

Merge

8026852: Use restricted_align_down in collector policy code
Summary: Moved restricted_align_down to globalDefinitions and renamed it align_size_down_bounded
Reviewed-by: stefank, mgerdin, tschatzl

8027616: Off by one error in putback for compressed oops nashorn performance improvement
Summary: Should compare bounds greater than or equal 4G when deciding if shift is needed or CDS area + compressed class space are within 4G of each other.
Reviewed-by: stefank, hseigel, zgu

Merge

8024927: Nashorn performance regression with CompressedOops
Summary: Allocate compressed class space at end of Java heap. For small heap sizes, without CDS, save some space so compressed classes can have the same favorable compression as oops
Reviewed-by: stefank, hseigel, goetz

8026822: metaspace/flags/maxMetaspaceSize throws OOM of unexpected type.java.lang.OutOfMemoryError: Compressed class space
Summary: Incorporate chunk size when seeing if OutOfMemoryError was caused by Metaspace or Compressed class space.
Reviewed-by: stefank, coleenp

8026698: Incorrect error handling in Metaspace::allocate
Reviewed-by: stefank, jwilhelm

8015255: NPG: Don't waste fragment at the end of a VirtualSpaceNode before retiring it.
Summary: Chunk up the last piece of committed memory in a VSN when getting a new one.
Reviewed-by: stefank, jmasa

8026715: Remove the MetaDataDeallocateALot develop flag
Reviewed-by: coleenp, mgerdin

8026391: The Metachunk header wastes memory
Reviewed-by: coleenp, jmasa

8025996: Track metaspace usage when metaspace is expanded
Reviewed-by: coleenp, ehelin

8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
Reviewed-by: brutisso, jmasa, coleenp

8025279: metaspace/flags/maxMetaspaceSize throws OOM: out of Compressed Klass space
Summary: Only put "Compressed class space" as OOM cause if actually using Compressed class space
Reviewed-by: jwilhelm, stefank, ehelin, coleenp

8025228: assert(new_entry->reserved_words() == vs_word_size) fails in nightly
Reviewed-by: mgerdin, tschatzl, jmasa

8025096: Move the ChunkManager instances out of the VirtualSpaceLists
Reviewed-by: coleenp, mgerdin, jmasa

8025059: Metspace::should_expand mixes bytes and words in check against MaxMetaspaceSize
Reviewed-by: coleenp, brutisso, mgerdin, jmasa

8024752: Log TraceMetadata* output to gclog_or_tty instead of tty
Reviewed-by: brutisso, mgerdin, coleenp

8024751: Fix bugs in TraceMetadata
Reviewed-by: jmasa, brutisso

8024651: Remove the incorrect usage of Metablock::overhead()
Reviewed-by: brutisso, mgerdin, coleenp, jmasa

8024638: Count and expose the amount of committed memory in the metaspaces
Reviewed-by: brutisso, ehelin

8023476: Metaspace capacity > reserved
Reviewed-by: stefank, hseigel, mgerdin

8009561: NPG: Metaspace fragmentation when retiring a Metachunk
Summary: Use best-fit block-splitting freelist allocation from the block freelist.
Reviewed-by: jmasa, stefank

8015107: NPG: Use consistent naming for metaspace concepts
Reviewed-by: coleenp, mgerdin, hseigel

8007074: SIGSEGV at ParMarkBitMap::verify_clear()
Summary: Replace the broken large pages implementation on Linux. New flag: -XX:+UseTransparentHugePages - Linux specific flag to turn on transparent huge page hinting with madvise(..., MAP_HUGETLB). Changed behavior: -XX:+UseLargePages - tries to use -XX:+UseTransparentHugePages before trying other large pages implementations (on Linux). Changed behavior: -XX:+UseHugeTLBFS - Use upfront allocation of Large Pages instead of using the broken implementation to dynamically committing large pages. Changed behavior: -XX:LargePageSizeInBytes - Turned off the ability to use this flag on Linux and provides warning to user if set to a value different than the OS chosen large page size. Changed behavior: Setting no large page size - Now defaults to use -XX:UseTransparentHugePages if the OS supports it. Previously, -XX:+UseHugeTLBFS was chosen if the OS was configured to use large pages.
Reviewed-by: tschatzl, dcubed, brutisso

8014659: NPG: performance counters for compressed klass space
Reviewed-by: mgerdin, coleenp, hseigel, jmasa, ctornqvi

8003424: Enable Class Data Sharing for CompressedOops
8016729: ObjectAlignmentInBytes=16 now forces the use of heap based compressed oops
8005933: The -Xshare:auto option is ignored for -server
Summary: Move klass metaspace above the heap and support CDS with compressed klass ptrs.
Reviewed-by: coleenp, kvn, mgerdin, tschatzl, stefank

8019845: Memory leak during class redefinition
Reviewed-by: acorn, jmasa, coleenp, dcubed, mgerdin

Merge

8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty
Summary: Allocate medium chunks for class metaspace when class loader has lots of classes
Reviewed-by: mgerdin, jmasa

8013590: NPG: Add a memory pool MXBean for Metaspace
Reviewed-by: jmasa, mgerdin

8014546: MetaspaceAux print_metaspace_change() should print "used" after GC not capacity
Reviewed-by: johnc, tschatzl

8014912: Restore PrintSharedSpaces functionality after NPG
Summary: Added dumping of object sizes in CDS archive, sorted by MetaspaceObj::Type
Reviewed-by: coleenp, acorn

8014862: Add fast Metasapce capacity and used per MetadataType
Reviewed-by: ehelin, stefank

8013129: Possible deadlock with Metaspace locks due to mixed usage of safepoint aware and non-safepoint aware locking
Summary: Change Metaspace::deallocate to take lock with _no_safepoint_check_flag
Reviewed-by: coleenp, jmasa, dholmes

8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions
Reviewed-by: mgerdin, coleenp

8011268: NPG: Free unused VirtualSpaceNodes
Reviewed-by: mgerdin, coleenp, johnc

8011173: NPG: Replace the ChunkList implementation with class FreeList<Metachunk>
Reviewed-by: mgerdin, tschatzl, johnc, coleenp

Merge

8008217: CDS: Class data sharing limits the malloc heap on Solaris
Summary: In 64bit VM move CDS archive address to 32G on all platforms using new flag SharedBaseAddress. In 32bit VM set CDS archive address to 3Gb on Linux and let other OSs pick the address.
Reviewed-by: kvn, dcubed, zgu, hseigel

Merge

8004241: NPG: Metaspace occupies more memory than specified by -XX:MaxMetaspaceSize option
Summary: Enforce MaxMetaspaceSize for both metaspace parts, check MaxMetaspaceSize against "reserved", not "capacity"
Reviewed-by: jmasa, johnc

Merge

8005602: NPG: classunloading does not happen while CMS GC with -XX:+CMSClassUnloadingEnabled is used
Summary: Call purge() on CLDG after sweep(), reorder purge() call in GenCollectedHeap
Reviewed-by: jmasa, stefank

Merge

8009614: nsk/split_verifier/stress/ifelse/ifelse002_30 fails with 'assert((size & (granularity - 1)) == 0) failed: size not aligned to os::vm_allocation_granularity()
Summary: Align up vm allocation size to os defined granularity
Reviewed-by: dholmes, coleenp

Merge

8009282: Assertion "assert(used_and_free == capacity_bytes) failed: Accounting is wrong" failed with -XX:+Verbose -XX:+TraceMetadataChunkAllocation
Summary: Assertion is only valid when at a safepoint, adjust accordingly.
Reviewed-by: stefank, jmasa, tamao

8003553: NPG: metaspace objects should be zeroed in constructors
Summary: Zero metadata in constructors, not in allocation (and some in constructors)
Reviewed-by: jmasa, sspitsyn

8005452: NPG: Create new flags for Metaspace resizing policy
Reviewed-by: johnc, jwilhelm, coleenp, stefank

8007257: NPG: metaspace.cpp: Incorrect arguments in calls to err_msg
Summary: Fix size checks in assert and corrected some print formats. Also reviewed by vitalyd@gmail.com.
Reviewed-by: coleenp, sspitsyn

8005486: NPG: Incorrect assertion in ChunkManager::list_index()
Reviewed-by: coleenp

8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders
Reviewed-by: johnc, coleenp

8005108: NPG: MetaspaceAux::used_in_bytes(), capacity_in_bytes() and reserved_in_bytes() return inconsistent numbers
Summary: Reverted the changes to these functions from JDK-8000662
Reviewed-by: brutisso, jmasa

8003554: NPG: move Metablock and Metachunk code out of metaspace.cpp
Reviewed-by: coleenp

Merge

8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
Summary: Add ClassLoaderData object for each anonymous class with metaspaces to allocate in.
Reviewed-by: twisti, jrose, stefank

8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
Summary: Make metaspace::contains be lock free and used to see if something is in metaspace, also compare Method* with vtbl pointer.
Reviewed-by: dholmes, sspitsyn, dcubed, jmasa

7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
Summary: Reduce the amount of calls to ChunkManager verification code
Reviewed-by: jmasa, coleenp

7045397: NPG: Add freelists to class loader arenas.
Reviewed-by: coleenp, stefank, jprovino, ohair

7200615: NPG: optimized VM build is broken
Reviewed-by: kvn

7197557: NPG: nsk/sysdict/vm/stress/chain/chain004 hangs intermittently
Reviewed-by: johnc, ysr

7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
Summary: Don't allocate huge class metaspace size by default on x64
Reviewed-by: stefank, jmasa, kvn

7196298: Better fix for 7195789
Reviewed-by: jcoomes, brutisso

7195789: NPG: assert(used + free == capacity) failed: Accounting is wrong
Reviewed-by: coleenp, jcoomes

7195823: NPG: CMS reserved() doesn't match _rs.base().
Summary: If the commit fails, the size isn't set so the assert fails.
Reviewed-by: kamg

6964458: Reimplement class meta-data storage to use native memory
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: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>