Merge

8233695: AArch64 build failures after -Wno-extra removal Reviewed-by: aph

8233401: Shenandoah: Refactor/cleanup Shenandoah load barrier code Reviewed-by: aph, shade, rkennke

8233375: JFR emergency dump does not recover thread state Reviewed-by: dholmes, mgronlun

8233659: [TESTBUG] runtime/cds/appcds/CommandLineFlagCombo.java fails when jfr is disabled Reviewed-by: iklam

8233650: Javadoc for Math.floorMod(int, int) gives wrong example Reviewed-by: bpb

8233599: ARM32 Build failed due to 8232050 missing an include Reviewed-by: dholmes Contributed-by: Markus Knetschke <markus.knetschke@gmail.com>

8233622: (zipfs) open/test/jdk/jdk/nio/zipfs/CopyMoveTests.java has incorrect bug label Reviewed-by: rriggs

8233608: Minimal build broken after JDK-8233494 Reviewed-by: shade

Check for AF_UNIX support on Windows was not correct

8233590: Compiler thread creation fails with assert(_c2_count > 0 || _c1_count > 0) failed: No compilers? Summary: Handle the case with -XX:-TieredCompilation properly Reviewed-by: shade, thartmann Contributed-by: fujie@loongson.cn

8233496: AOT tests failures with 'java.lang.RuntimeException: Failed to find sun/hotspot/WhiteBox.class' Reviewed-by: kvn, thartmann

8232209: Update double-conversion license file to version 3.1.5 Reviewed-by: sundar

make benchmark use loopback address

8233530: gcc 5.4 build warning -Wc++14-compat after JDK-8233359 Reviewed-by: dholmes, goetz

added some micro benchmarks (SocketChannelCompare does direct comparison)

8233081: C1: PatchingStub for field access copies too much Reviewed-by: thartmann, dlong

8232896: ZGC: Enable C2 clone intrinsic Reviewed-by: pliden, kvn

8232880: Update test documentation with additional settings for client UI tooltip tests Reviewed-by: aivanov, serb, ihse

8233574: Shenandoah: build is broken without jfr Reviewed-by: rkennke, shade

8233495: Some fieldDescriptor methods can pass existing constantPoolHandle Reviewed-by: lfoltan, coleenp

8233494: Avoid calling MallocTracker::record_malloc and record_free when NMT is off Reviewed-by: mdoerr, zgu

8233429: Minimal and zero VM build broken after JDK-8227003 Reviewed-by: iveresov, shade, thartmann Contributed-by: igor.veresov@oracle.com, fujie@loongson.cn

8233019: java.lang.Class.isPrimitive() (C1) returns wrong result if Klass* is aligned to 32bit Reviewed-by: mdoerr, dlong, aph

8233422: Extra space in the title of the HTML javadoc page Reviewed-by: ihse, erikj

8232734: [TESTBUG] avoid using JDK symbols in ExtraSymbols.symbols.txt Reviewed-by: ccheung

8232919 : If user installs msi and exe, two installations are found in Add/Remove Submitted-by: asemenyuk Reviewed-by: aherrick, almatvee

Merge