8038829: G1: More useful information in a few assert messages Reviewed-by: sjohanss, jmasa

8028498: runtime/SharedArchiveFile/CdsDifferentObjectAlignment.java asserts in RT_Baseline Summary: Preventing GCs to occur before VM is completely initialized. This was previously partly done by one part of the GC locker which not was removed. Reviewed-by: coleenp, pliden

8038630: Remove ExtendedOopClosure::prefetch_style() Reviewed-by: coleenp, jmasa

8038628: Remove unused Closure::abort() Reviewed-by: coleenp, jmasa

8038405: Clean up some virtual fucntions in Space class hierarchy Summary: Get rid of some duplicated implementations and change nonsense implementations to pure virtuals Reviewed-by: stefank, jmasa

8038412: Move object_iterate_careful down from Space to ContigousSpace and CFLSpace Summary: Only declare the functions where they are actually needed. Reviewed-by: tschatzl, stefank

8038404: Move object_iterate_mem from Space to CMS since it is only ever used by CMS Reviewed-by: brutisso, tschatzl, stefank

Merge

Merge

8036767: PPC64: Support for little endian execution model Reviewed-by: goetz, kvn, dholmes, simonis Contributed-by: asmundak@google.com

Merge

8039043: Implicit null check is in the wrong place in C1 -UseCompressedOops Summary: Null check is placed in a wrong place when storing a null to an object field on x64 with compressed oops off Reviewed-by: roland, vlivanov, kvn

8039045: PPC64: need include in adl generated files after 8001532 Reviewed-by: kvn

8001532: C2 node files refactoring Summary: Split C2 node files into cast, convert, countbits, intrinsic, move, narrowptr and opaquenode classes Reviewed-by: kvn, morris

8038633: crash in VM_Version::get_processor_features() on startup Summary: Windows need an exception wrapper around getPsrInfo_stub() call in order to properly handle SEGV for YMM registers test. Reviewed-by: iveresov, iignatyev

8037970: make PrintMethodData a diagnostic options Summary: make PrintMethodData a diagnostic options for performance investigation Reviewed-by: kvn, iveresov

8031755: Type speculation should be used to optimize explicit null checks Summary: feed profiling data about reference nullness to type speculation. Reviewed-by: kvn, iveresov

8038393: [TESTBUG] ciReplay/* tests fail after 8034775 Reviewed-by: kvn

8037295: Add size_t versions of Atomic::add, dec, and inc Reviewed-by: dholmes, fparain Contributed-by: david.simms@oracle.com

8038201: Clean up misleading usage of malloc() in init_system_properties_values() Summary: Remove the misleading malloc macro and cleanup the code Reviewed-by: dsamersoff, kvn Contributed-by: goetz.lindenmaier@sap.com

8016039: jvm.lib is missing from export list unless building server Summary: make the export declaration unconditional Reviewed-by: sla, sspitsyn

7189721: nightly tests failed on JDI attaching Summary: If for some reason elf section with section names is not loaded to cache it attempts to read data using NULL section pointer. Reviewed-by: sspitsyn, sla, kevinw

Merge

8036666: VMTI GetObjectMonitorUsage does not return correct recursion count Summary: fix object lock recursion count and add test Reviewed-by: sspitsyn, dsamersoff

7090324: gclog rotation via external tool Summary: GC log rotation can be set via java command line, but customer sometime need to sync with OS level rotation setting. Reviewed-by: sla, minqi, ehelin Contributed-by: suenaga.yasumasa@lab.ntt.co.jp

8007890: [TESTBUG] JcmdWithNMTDisabled.java fails when invoked with NMT explicitly turned on Summary: Wrapped the test in another layer process creation to avoid NMT being turned on. Reviewed-by: coleenp, dcubed

8031820: NPG: Fix remaining references to metadata as oops in comments 8012125: Comments for ConstantPoolCache should reflect the addition of resolved_references in ConstantPool Summary: Updated comments in metadata header files, and renamed this_oop variables to this_cp or this_k when referring to constant pool or classes. Reviewed-by: stefank, jmasa

8032222: [TESTBUG] runtime/SharedArchiveFile/CdsWriteError.java fails on Mac OS with java.lang.RuntimeException Summary: Excluded the test from running on Mac OS Reviewed-by: coleenp, ctornqvi

Merge

Merge

Merge

Merge

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