8026041: JVM crashes with assert "assert(is_updated()) failed: must not be clear" with -XX:+PrintGCApplicationConcurrentTime in -Xcomp mode
Summary: Prior to printing the time interval in RuntimeService::record_safepoint_begin(), check first that VM initialization is complete.
Reviewed-by: coleenp, dholmes, sla, ctornqvi
Contributed-by: lois.foltan@oracle.com

Summary: Switched from using SystemDictionary to using ClassLoaderDataGraph to get the anonymous classes included.
Reviewed-by: sla, sspitsyn
Contributed-by: fredrik.arvidsson@oracle.com

Reviewed-by: coleenp, ehelin

Reviewed-by: dholmes, kvn

Summary: Enable CHECK_UNHANDLED_OOPS in fastdebug builds across all supported platforms.
Reviewed-by: coleenp, hseigel, dholmes, stefank, twisti, ihse, rdurbin
Contributed-by: lois.foltan@oracle.com

Reviewed-by: sla, dsamersoff
Contributed-by: NYasumasa Suenaga <yasu@ysfactory.dip.jp>

Reviewed-by: stefank, dholmes, coleenp

Reviewed-by: sla, coleenp, ctornqvi, dsamersoff

Reviewed-by: sla

Summary: Removed incorrect assertion, sequence number can overflow
Reviewed-by: dholmes, kamg

Summary: declare all user-defined operator new()s within Hotspot code with the empty throw() exception specification
Reviewed-by: coleenp, twisti, dholmes, hseigel, dcubed, kvn, ccheung
Contributed-by: lois.foltan@oracle.com

Reviewed-by: coleenp, sla
Contributed-by: vladimir.kempik@oracle.com

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

Reviewed-by: stefank, sjohanss

Reviewed-by: coleenp, mgerdin, hseigel

Reviewed-by: mgerdin, fparain, dcubed

Summary: Assert in ThreadTimesClosure::do_thread() due to use of naked oop instead of handle
Reviewed-by: coleenp, sspitsyn

Summary: ARM compilers do not emit FramePointer on each native frame by default
Reviewed-by: dholmes, zgu

Summary: Some of qsort implementation on Linux x86 compares element to itself, which is  mistakenly treated as duplicate pointer
Reviewed-by: dcubed, acorn

8016074: NMT: assertion failed: assert(thread->thread_state() == from) failed: coming from wrong thread state
Summary: Uses os::NakedYield() on Solaris instead of os::yield_all()
Reviewed-by: acorn, coleenp, hseigel

Reviewed-by: jmasa, mgerdin

Summary: Fixed NMT race condition for realloc, uncommit and release
Reviewed-by: coleenp, ccheung

Reviewed-by: dcubed, 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

Summary: Enforce memory limitation on NMT to prevent JVM OOM
Reviewed-by: acorn, dcubed, minqi

Summary: Fixed possible NULL pointer that caused SIGSEGV
Reviewed-by: coleenp, acorn, ctornqvi

Summary: Simple fix when memory allocation site is gone, NMT should report 0 memory size, instead old memory size.
Reviewed-by: dcubed, ctornqvi

Summary: Simple fix to add NULL pointer check that can cause segv
Reviewed-by: coleenp, ctornqvi

Reviewed-by: dholmes, coleenp
Contributed-by: jeremymanson@google.com, calvin.cheung@oracle.com

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>

Summary: NMT_detail is only supported when frame pointers are not omitted (-fno-omit-frame-pointer).
Reviewed-by: dholmes, cjplummer

8013120: NMT: Kitchensink crashes with assert(next_region == NULL || !next_region->is_committed_region()) failed: Sanity check
Summary: Fixed NMT to deal with releasing virtual memory region when there are still committed regions within it
Reviewed-by: acorn, coleenp

Reviewed-by: acorn, sla

Summary: Grab and drop SR_lock to get the thread to honor the safepoint protocol
Reviewed-by: dcubed, coleenp

Summary: Made NMT query safepoint aware.
Reviewed-by: dholmes, coleenp

Reviewed-by: dholmes, rbackman
Contributed-by: peter.allwin@oracle.com

Summary: NMT value objects should use VALUE_OBJ_CLASS_SPEC instead of deriving from _ValueObj
Reviewed-by: coleenp, hseigel, dholmes

8012455: Missing time and date stamps for PrintGCApplicationConcurrentTime and PrintGCApplicationStoppedTime
Summary: also reviewed by: kirk@kodewerk.com, brandon@twitter.com
Reviewed-by: tschatzl, stefank, johnc

Reviewed-by: iris, mduigou, jjg

8010151: nsk/regression/b6653214 fails "assert(snapshot != NULL) failed: Worker should not be started"
Summary: Fixed a racing condition when shutting down NMT while worker thread is being started, also fixed a few mis-declared volatile pointers.
Reviewed-by: dholmes, dlong