8027924: gc/metaspace/CompressedClassSpaceSizeInJmapHeap.java fails with warning Reviewed-by: jmasa, tschatzl

8038399: Remove dead oop_iterate MemRegion variants from SharedHeap, Generation and Space classes Reviewed-by: tschatzl, stefank

8033580: Old debug information in IMPORT_JDK is not removed Reviewed-by: dcubed, erikj

6521376: MaxTenuringThreshold and AlwayTenure/NeverTenure consistency Summary: Adapt InitialTenuringThreshold and MaxTenuringThreshold according to AlwaysTenure/NeverTenure flag setting. Reviewed-by: jmasa, tschatzl

8037958: ConcurrentMark::cleanup leaks BitMaps if VerifyDuringGC is enabled Summary: Allocate temporary BitMaps in the VMThread's resource area Reviewed-by: stefank, sjohanss

Merge

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

Merge

8038193: Add command line option tests for BMI options Reviewed-by: kvn, iignatyev Contributed-by: filipp.zhinkin@oracle.com

Merge

8038240: new WB API to get nmethod Reviewed-by: morris, kvn

8037821: Account for trampoline stubs when estimating code buffer sizes Summary: Take into account space needed for "trampoline code" used by calls on PPC64. Reviewed-by: kvn Contributed-by: lutz.schmidt@sap.com

8038222: Assembler::bsrl fails on assert when -UseCountLeadingZerosInstruction is used on CPU with LZCNT support Summary: Remove the overly strict assert Reviewed-by: kvn, twisti

8038286: nm->set_rtm_state() should be called after (nm != NULL) check Summary: move set_rtm_state() call after (nm != NULL) check Reviewed-by: iveresov, twisti

6653795: C2 intrinsic for Unsafe.getAddress performs pointer sign extension on 32-bit systems Summary: Native pointers less than 64 bits wide should be extended as an unsigned number. Reviewed-by: kvn, kevinw

8038181: Can't build product VM without precompiled header Summary: Added missing #include. Reviewed-by: twisti

8035857: Add tests to verify correctness of operations with BMI1 and LZCNT instructions Reviewed-by: iveresov, kvn, iignatyev Contributed-by: filipp.zhinkin@oracle.com

8037915: PPC64/AIX: Several smaller fixes Reviewed-by: kvn

8031320: Use Intel RTM instructions for locks Summary: Use RTM for inflated locks and stack locks. Reviewed-by: iveresov, twisti, roland, dcubed

8031203: remove SafepointPollOffset Reviewed-by: kvn, roland

Merge

8036576: jtreg failed on Test6792161 timed out Summary: Increase time out value of test since debug VM executes additional code Reviewed-by: kvn

8037226: compiler/7196199/Test7196199.java fails on 32-bit linux with MaxVectorSize > 16 Summary: verify YMM registers after signal processing and set limit on vector's size. Reviewed-by: iveresov, twisti

8037140: C1: Incorrect argument type used for SharedRuntime::OSR_migration_end in LIRGenerator::do_Goto Summary: Fix the type of osrBuffer parameter to depend on bitness Reviewed-by: kvn, twisti

8037149: C1: getThreadTemp should return a T_LONG register on 64bit Summary: Fix the type of the register returned by getThreadTemp() to depend on bitness Reviewed-by: kvn, twisti

Merge

8038262: Workaround for ccache in vm.make is missing for aix Reviewed-by: simonis, kvn

8033566: [parfait] warning from b128 for hotspot/src/share/vm/runtime/frame.cpp: JNI primitive type mismatch Summary: added an assert for checking the return value is <= max_jint Reviewed-by: coleenp, minqi

Merge

8034034: [parfait] JNI exc. pending in hotspot/agent/src/os/bsd/MacosxDebuggerLocal.m Summary: added JNI exception check in the appropriate places Reviewed-by: sla, zgu

8037340: Linux semaphores to use CLOCK_REALTIME Reviewed-by: dholmes, sla

Merge

Merge

8027914: Client JVM silently exit with fail exit code when running in compact(1,2) with options -Dcom.sun.management and -XX:+ManagementServer Summary: Check for sun.management.Agent class and print message and exit VM if not found at startup. Reviewed-by: dholmes, mchung

Merge

Merge

8037962: metaspaceTracer.cpp misses a symbol Reviewed-by: tschatzl, mgerdin Contributed-by: goetz.lindenmaier@sap.com

8029075: String deduplication in G1 Summary: Implementation of JEP 192, http://openjdk.java.net/jeps/192 Reviewed-by: brutisso, tschatzl, coleenp

8036025: Sort the freelist in order to shrink the heap Summary: The free list is being maintained in a sorted fashion and old and humongous regions are allocated from the bottom of the heap while young regions are allocated at the top. Reviewed-by: tschatzl, mgerdin Contributed-by: jesper.wilhelmsson@oracle.com, staffan.friberg@oracle.com

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

8037495: Remove platform specific specification of SurvivorRatio for BSD Reviewed-by: mgerdin, stefank

8037510: CMM Testing: Check Min/MaxHeapFreeRatio flags allows to shrink the heap when using ParallelGC Summary: Added tests for Min/MaxHeapFreeRatio flags Reviewed-by: jwilhelm, tschatzl Contributed-by: andrey.x.zakharov@oracle.com

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

8036696: Add metaspace gc threshold to metaspace summary trace event Reviewed-by: jmasa, stefank, mgerdin

8036673: G1: Abort weak reference processing if mark stack overflows Reviewed-by: brutisso, tschatzl

8036672: G1: alloc_purpose in copy_to_survivor_space() used incorrectly Reviewed-by: brutisso, tschatzl

Merge

Merge

8037407: G1: Remove heapRegionSets.cpp Reviewed-by: tschatzl, pliden

8036860: Pad and cache-align the BiasedMappedArray Summary: Pad and cache-align BiasedMappedArray instances by default to avoid performance variability problems due to false sharing, as instances of this data structures are typically used for performance sensitive code. Reviewed-by: brutisso, stefank

8035330: Remove G1ParScanPartialArrayClosure and G1ParScanHeapEvacClosure Summary: Mentioned closures are actually wrapped methods. This adds confusion to readers, and in this case also increases code size as G1ParScanHeapEvacClosure is part of the oop_oop_iterate() methods. Move them into G1ParScanThreadState as methods. Reviewed-by: stefank

8034868: Extract G1 From Card Cache into separate class Summary: Refactor the From Card Cache into a separate class. Reviewed-by: jmasa

8035654: Add times for evacuation failure handling in "Other" time Summary: Detailed breakdown of time spent in the evacuation failure handling phases to make the "Other" time roughly correspond to the sum of its parts. Reviewed-by: jwilhelm, jmasa

8035398: Add card redirty time in "Other" time in G1 Summary: Show the time taken by card redirtying during GC in a new "Redirty Cards" line. Reviewed-by: jwilhelm, brutisso

8027295: Free CSet takes ~50% of young pause time Summary: Improve fast card cache iteration and avoid taking locks when freeing the collection set. Reviewed-by: brutisso

8035815: Cache-align and pad the from card cache Summary: The from card cache is a very frequently accessed data structure. It is essentially a 2d array of per-region values, one row of values for every GC thread. Pad and align the data structure to avoid false sharing. Reviewed-by: stefank

8035406: Improve data structure for Code Cache remembered sets Summary: Change the code cache remembered sets data structure from a GrowableArray to a chunked list of nmethods. This makes the data structure more amenable to parallelization, and decreases freeing time. Reviewed-by: mgerdin, brutisso

8034079: G1: Refactor the HeapRegionSet hierarchy Reviewed-by: tschatzl, pliden

Merge

8036630: Null ProtectionDomain in JVM can cause NPE because principals field is not initialized to an empty array Summary: Call ProtectionDomain constructor instead of making all fields null. Reviewed-by: fparain, zgu

6976636: JVM/TI test ex03t001 fails assertion Summary: Relax assert in the post_class_unload for the CMS case Reviewed-by: dcubed, dsamersoff Contributed-by: serguei.spitsyn@oracle.com

8025550: valgrind: Conditional jump depends on uninitialised value in Arena::set_size_in_bytes() Summary: Fixed initialized variable that could miscount arena memory Reviewed-by: coleenp, ccheung