8169703: G1 crashes with guarantee(pretouch_gang != NULL) failed: No pretouch gang specified Summary: Allow use of AlwaysPreTouch without passing a WorkGang. Reviewed-by: kbarrett, dfazunen, ddmitriev

8169931: 8k class metaspace chunks misallocated from 4k chunk freelist​ Reviewed-by: mgerdin, coleenp, ehelin, stuefe

8167650: NMT should check for invalid MEMFLAGS Reviewed-by: dholmes, mockner, cjplummer

8168492: Convert CollectedHeap_test to GTest Reviewed-by: iignatyev, tschatzl

8168493: Convert TestBitMap_test to GTest Reviewed-by: kbarrett, tschatzl

8169232: SA: TestCpoolForInvokeDynamic.java fails with sun.jvm.hotspot.debugger.DebuggerException: binary search bug: should have found entry 1 Summary: Avoid potential data loss by avoiding the long-to-int cast of the return value of minus() Reviewed-by: dsamersoff, sspitsyn Contributed-by: jini.george@oracle.com

8166811: Missing memory fences between memory allocation and refinement Summary: Refactored to have needed barrier Reviewed-by: tschatzl, ehelin

8166607: G1 needs klass_or_null_acquire Summary: Use acquire where needed, split refinment humongous and non to simplify. Reviewed-by: tschatzl, ehelin

8165287: fix compress intrinsics to produce correct results with avx512 Reviewed-by: kvn

8170039: Change UseAVX < 3 on SKX/KNL to not emit evex vector check Reviewed-by: kvn

8168396: Unexpected OOME in GcCauseTest02 and GcTest02 Reviewed-by: tschatzl, dfazunen

8169870: CDS: "assert(partition_size <= size()) failed: partition failed" on 32 bit JVM Summary: Exit the VM and report error if the second ReservedSpace() call also fails. Reviewed-by: cjplummer, sspitsyn, iklam

8170100: AArch64: Crash in C1-compiled code accessing References Reviewed-by: roland

8170098: AArch64: VM is extremely slow with JVMTI debugging enabled Reviewed-by: roland

8169941: CodeBlob::is_frame_complete_at() does not honor CodeOffsets::frame_never_safe Summary: CodeBlob::is_frame_complete_at() should always return false if _frame_complete_offset is set to CodeOffsets::frame_never_safe (-1). Reviewed-by: kvn, dlong

8169711: CDS does not patch entry trampoline if intrinsic method is disabled Summary: Always create interpreter method entries for intrinsified methods but replace them with vanilla entries if the intrinsic is disabled at runtime. Reviewed-by: kvn, iklam

8169901: AArch64: CompareAndExchange intrinsics clobber address register Reviewed-by: aph

8166719: gc/stress/TestStressG1Humongous.java fails with OOME Reviewed-by: tschatzl, dfazunen

8169529: AArch64: Revert old JDK-8167595 changes after JDK-8159035 fix is pushed Summary: Removed the zero check Reviewed-by: adinn, aph, thartmann

Merge

8165550: Add class loader names to ClassCastException message Summary: Adds new format of class loader names to VM ClassCastException messages Reviewed-by: dholmes, mchung, lfoltan

8166304: Skipping access check for classes generated by core reflection Summary: Only allow boot and reflection class loader to load sub-types of jdk.internal.reflect Reviewed-by: acorn, lfoltan, rehn

8169638: serviceability/sa/TestInstanceKlassSize.java and serviceability/sa/TestInstanceKlassSizeForInterface.java fail compilation Summary: Modified the jtreg tests to use @modules Reviewed-by: dsamersoff, rehn Contributed-by: jini.george@oracle.com

8165955: TestFullGCCount test failed with CMS and -XX:+ExplicitGCInvokesConcurrent Reviewed-by: dfazunen, tschatzl

7107013: sun.jvm.hotspot.runtime.Bytes.swapLong conversion to long mishandled Summary: Cast to long to avoid truncation in swapLong() Reviewed-by: dsamersoff Contributed-by: Sharath Ballal <sharath.ballal@oracle.com>

8169423: Infinite loop in G1's ConcurrentMarkThread Summary: Also terminate loop if has_aborted flag is set. Reviewed-by: tschatzl, sjohanss

8169551: Segfaults in error traces when module version is null Summary: Make sure module->version() is not null before dereferencing it. Reviewed-by: coleenp, gtriantafill, lfoltan

Merge

8168934: [TESTBUG] gc/g1/logging/TestG1LoggingFailure.java failed Reviewed-by: tschatzl, dfazunen

Merge