Summary: HotSpot changes to support @Contended annotation.
Reviewed-by: coleenp, kvn, jrose
Contributed-by: NAleksey Shipilev <aleksey.shipilev@oracle.com>

Summary: Save the alignment when writing the CDS and compare it when reading the CDS.
Reviewed-by: kvn, coleenp

Summary: Added missing exception path for multidimensional array allocation and use Throwable type instead of OutOfMemoryError for allocation's exception.
Reviewed-by: twisti

Summary: When java process crashed in compiler thread, repeat the compilation process will help finding root cause. This is done with using SA dump application class data and replay data from core dump, then use debug version of jvm to recompile the problematic java method.
Reviewed-by: kvn, twisti, sspitsyn
Contributed-by: yumin.qi@oracle.com

Summary: Check that the values specified for -XX:StringTableSize are within a certain range.
Reviewed-by: dholmes, coleenp

Summary: Remove support for the UseVectoredExceptions flag
Reviewed-by: jcoomes, kamg
Contributed-by: harold.seigel@oracle.com

Summary: Use new x86 AES instructions for AESCrypt.
Reviewed-by: twisti, kvn, roland
Contributed-by: tom.deneau@amd.com

Reviewed-by: kvn, jrose

Summary: Add generic type analysis and default method selection algorithms
Reviewed-by: coleenp, acorn

Reviewed-by: kvn, jrose

Summary: add LogCompilation support in C1 - both client and tiered mode.
Reviewed-by: twisti, kvn

Summary: Remove buggy experimental option
Reviewed-by: acorn, coleenp
Contributed-by: harold.seigel@oracle.com

Summary: Change the flags and variables related to tenuring threshold to be unsigned
Reviewed-by: jmasa, johnc

Reviewed-by: johnc

Summary: Print out statistics of collected NMT data if it is on at VM exits
Reviewed-by: kvn, coleenp, twisti

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

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>

Summary: Remove the SharedSkipVerify flag
Reviewed-by: kamg, sspitsyn, coleenp
Contributed-by: harold.seigel@oracle.com

Reviewed-by: kvn, dholmes, coleenp
Contributed-by: NTao Mao <tao.mao@oracle.com>

Summary: Provide additional detail in VerifyError messages
Reviewed-by: sspitsyn, acorn

6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: NJohn Rose &lt;john.r.rose@oracle.com&gt;, Christian Thalinger &lt;christian.thalinger@oracle.com&gt;, Michael Haupt <michael.haupt@oracle.com>

Summary: change hotspot flag to be unsigned
Reviewed-by: dholmes, sla, fparain, brutisso
Contributed-by: NChris Dennis <cdennis@terracottatech.com>

7151532: DCmd for hotspot native memory tracking
Summary: Implementation of native memory tracking phase 1, which tracks VM native memory usage, and related DCmd
Reviewed-by: acorn, coleenp, fparain

Summary: Use an alternate version of hashing algorithm for symbol string tables and after a certain bucket size to improve performance
Reviewed-by: pbk, kamg, dlong, kvn, fparain

Reviewed-by: kvn, twisti
Contributed-by: NKrystal Mok <sajia@taobao.com>

Summary: Simplify code, remove unused code, remove ExitAfterGCNum
Reviewed-by: huntch, johnc

Reviewed-by: mgerdin, johnc

Summary: Move symbol allocation to an arena so NMT doesn't have to track them at startup.
Reviewed-by: never, kamg, zgu

7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
Summary: Provide custom error messages for locked commercial feature options which are not first unlocked.
Reviewed-by: dcubed, jcoomes, kamg
Contributed-by: james.melvin@oracle.com

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

Summary: Safepoint in the sweeper loop in necessary
Reviewed-by: kvn, never

Reviewed-by: kvn

Reviewed-by: kvn, jrose, kevinw, brutisso, twisti, jmasa

Summary: 7u4 new experimental flag -XX:PredictedClassLoadedCount=#
Reviewed-by: dholmes, phh, dcubed

Summary: Fix pure c2 builds
Reviewed-by: kvn, brutisso, never

Summary: Add CriticalPriority == MaxPriority+1 and enable scheduling class as well as thread priority to change on Solaris.
Reviewed-by: dholmes, dcubed

Summary: Change the value of Tier3BackEdgeThreshold from 7000 to 60000
Reviewed-by: kvn, never

Reviewed-by: dholmes, bdelsart, kvn, twisti

Reviewed-by: acorn, phh, dcubed, sspitsyn

Summary: Add Flag::external_ext()/writable_ext(), both return false.
Reviewed-by: coleenp, zgu