Summary: this fix also removes the -XX:+UseStringCache option
Reviewed-by: dholmes, acorn, iklam

Reviewed-by: acorn, dcubed, dsimms

Reviewed-by: jrose, kvn, mgronlun

7162400: Intermittent java.io.IOException: Bad file number during HotSpotVirtualMachine.executeCommand
Summary: Intermittent java.io.IOException: Bad file number during HotSpotVirtualMachine.executeCommand
Reviewed-by: dcubed, dholmes, sspitsyn, mgerdin, ctornqvi, dsamersoff

Reviewed-by: kvn, dcubed

Summary: Remove -Xaprof and Klass::_alloc_count & ArrayKlass::_alloc_size.
Reviewed-by: stefank, coleenp

Summary: Reduce default size of Thread::_metadata_handles from 300 to 30
Reviewed-by: coleenp, sspitsyn

Reviewed-by: acorn, coleenp, sla
Contributed-by: NKaren Kinnear &lt;karen.kinnear@oracle.com&gt;, Bengt Rutisson &lt;bengt.rutisson@oracle.com&gt;, Calvin Cheung &lt;calvin.cheung@oracle.com&gt;, Erik Gahlin &lt;erik.gahlin@oracle.com&gt;, Erik Helin &lt;erik.helin@oracle.com&gt;, Jesper Wilhelmsson &lt;jesper.wilhelmsson@oracle.com&gt;, Keith McGuigan &lt;keith.mcguigan@oracle.com&gt;, Mattias Tobiasson &lt;mattias.tobiasson@oracle.com&gt;, Markus Gronlund &lt;markus.gronlund@oracle.com&gt;, Mikael Auno &lt;mikael.auno@oracle.com&gt;, Nils Eliasson &lt;nils.eliasson@oracle.com&gt;, Nils Loodin &lt;nils.loodin@oracle.com&gt;, Rickard Backman &lt;rickard.backman@oracle.com&gt;, Staffan Larsen &lt;staffan.larsen@oracle.com&gt;, Stefan Karlsson &lt;stefan.karlsson@oracle.com&gt;, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>

Reviewed-by: johnc, brutisso

Summary: anti-delta fix for 8010992 until 8012902 can be fixed
Reviewed-by: acorn, minqi, rdurbin

Summary: disable use of global operator new and new[] which could cause unexpected exception and escape from NMT tracking.
Reviewed-by: coleenp, dholmes, zgu
Contributed-by: yumin.qi@oracle.com

Summary: Some parts of the G1 heap can only be walked during a safepoint. Skip verifying these parts of the heap when verifying during JVM startup.
Reviewed-by: brutisso, tschatzl

Reviewed-by: dlong, alanb, mduigou

Summary: Make deadlock detection a little more robust in the case of being unable to find the JavaThread associated with an object lock.
Reviewed-by: sla, acorn

Summary: Perform verification during VM startup under control of new flag and within a VMOperation.
Reviewed-by: stefank, jmasa, brutisso

Summary: Flush any deferred card mark before a Java thread exits.
Reviewed-by: brutisso, jmasa

Summary: Removed depreciated kernel VM source code from hotspot VM
Reviewed-by: dholmes, acorn

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

Reviewed-by: dholmes, stefank
Contributed-by: erik.helin@oracle.com

Summary: Moved NMT shutdown code to JVM exit handler to ensure NMT statistics is printed when PrintNMTStatistics is enabled
Reviewed-by: acorn, dholmes, 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: If there are not enough native resources to create the ReferenceHandler or Finalizer Java threads, the VM will attempt to throw an OOME before the java.lang.Class class has been initialized. This can result in assertion failures and other crashes. Move the initialization of the java.lang.Class class to just before the initialization of the java.lang.ref.Finalizer class.
Reviewed-by: jwilhelm, dholmes, coleenp

Reviewed-by: twisti
Contributed-by: NRoman Kennke <rkennke@redhat.com>

Reviewed-by: dholmes, rbackman, coleenp

Summary: Pass down a closure during root scanning to keep the class of the method alive.
Reviewed-by: coleenp, jcoomes

Summary: The flags MinHeapDeltaBytes and UseNUMAInterleaving must be adjusted after the OS have adjusted the UseNUMA flag in the method os::init_2.
Reviewed-by: dholmes, brutisso
Contributed-by: erik.helin@oracle.com

Summary: Remove function Klass::cast() and calls to it.
Reviewed-by: dholmes, coleenp

Summary: dll_dir can contain multiple paths, need to parse them correctly when loading agents
Reviewed-by: dholmes, dlong
Contributed-by: bill.pittore@oracle.com

Reviewed-by: dholmes, sspitsyn, kmo

Summary: Enhanced virtual memory tracking to track committed regions as well as reserved regions, so NMT now can generate virtual memory map.
Reviewed-by: acorn, coleenp

Reviewed-by: coleenp, kamg

Summary: Change makefiles so that targets and parameters can be overridden by alternate makefiles.
Reviewed-by: dholmes, coleenp

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

Summary: Enables dynamic enrollment / disenrollment from the PeriodicTasks in WatcherThread.
Reviewed-by: dholmes, mgronlun

Summary: Solaris only, record stack info to NMT after stack size adjustment was made for primordial threads
Reviewed-by: kvn, acorn, coleenp

Reviewed-by: dholmes, sla, fparain
Contributed-by: NDmytro Sheyko <dmytro_sheyko@hotmail.com>

Summary: Thread stack's base address can be NULL if it is not started or exited before recording the base
Reviewed-by: kvn, fparain

7181995: NMT ON: NMT assertion failure assert(cur_vm->is_uncommit_record() || cur_vm->is_deallocation_record
Summary: Fixed virtual memory records merge and promotion logic, should be based on sequence number vs. base address order
Reviewed-by: coleenp, acorn

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>

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