Summary:
- Port D65580 to dragonwell
- Print the young generation histogram once after parnew gc with the manageable flag: PrintYoungGenHistoAfterParNewGC

Test Plan: hotspot/test/gc/parNew/testPrintYoungGenHisto.sh

Reviewers: 传胜

Differential Revision: https://aone.alibaba-inc.com/code/D849729

Summary:
- Port D336179 mini-heapdump support to Dragonwell
- Enable HotSpot to skip dumping content of primitive type arrays

Test Plan: hotspot/test/serviceability, jdk/test/ras

Reviewers: 井桐

Reviewed By: 井桐

Differential Revision: https://aone.alibaba-inc.com/code/D849312

Summary:
- Port fix D2553 to Dragonwell
- Change default GC policy to UseConcMarkSweepGC

Test Plan: hotspot/test/gc/TestDefaultGC.sh

Reviewers: 井桐

Reviewed By: 井桐

Subscribers:

Differential Revision: https://aone.alibaba-inc.com/code/D849276

Reviewers: 效山, 芳玺, 传胜, 三红, yumin.qi

Reviewed By: 三红, 芳玺, 效山, 卓仁

Differential Revision: https://aone.alibaba-inc.com/code/D815657

Summary: Prevent downgraded compilation tasks from recompiling.
Reviewed-by: sgehwolf, thartmann, andrew

Summary: Includes compile_id addition from JDK-8054492
Reviewed-by: andrew

Summary: Avoided collecting unaligned stores in Initialize node by making can_capture_store return false for same
Reviewed-by: dlong, kvn, vlivanov

Summary: Add hotspot/test/runtime/jni directory with two tests for 8176100
Reviewed-by: kbarrett, coleenp, tschatzl

8180904: Hotspot tests running with -agentvm failing due to classpath
Summary: Add -cp System.getProperty("java.class.path") to ProcessBuilder arguments.
Reviewed-by: sla, gtriantafill

Reviewed-by: neliasso, kvn

Reviewed-by: kvn

8172850: Anti-dependency on membar causes crash in register allocator due to invalid instruction scheduling
Summary: Regression test and additional asserts. The problem is fixed by 8087341.
Reviewed-by: kvn

Reviewed-by: kvn

Summary: Replace shell script with Java-only code
Reviewed-by: kvn, iignatyev

Reviewed-by: acorn, hseigel, ahgross, rhalade

Summary: Created tests for the feature
Reviewed-by: mseledtsov

Reviewed-by: tschatzl

Reviewed-by: coleenp, sla

Reviewed-by: kvn
Contributed-by: vaibhav.x.choudhary@oracle.com

Reviewed-by: coleenp, sla

Reviewed-by: dholmes, erikj

Reviewed-by: dholmes, erikj

8156137: SIGSEGV in ReceiverTypeData::clean_weak_klass_links
8057570: RedefineClasses() tests fail assert(((Metadata*)obj)->is_valid()) failed: obj is valid
Reviewed-by: coleenp

8156137: SIGSEGV in ReceiverTypeData::clean_weak_klass_links
8057570: RedefineClasses() tests fail assert(((Metadata*)obj)->is_valid()) failed: obj is valid
Reviewed-by: coleenp

Reviewed-by: dholmes

Summary: Adding VM.dynlibs as a dcmd to dump all loaded dynamic libraries.
Reviewed-by: fparain, mgronlun

Summary: Implement Diagnostic Commands for heap and finalizerinfo
Reviewed-by: mchung

Summary: modified jtreg tags and package import to work with JDK 8
Reviewed-by: vlivanov, dholmes

8087291: InitialBootClassLoaderMetaspaceSize and CompressedClassSpaceSize should be checked consistent from MaxMetaspaceSize
Reviewed-by: dholmes, sspitsyn, poonam

Reviewed-by: jrose, coleenp, ahgross, acorn, vlivanov

Reviewed-by: kvn

Summary: Bailout if OSR entry is unreachable.
Reviewed-by: thartmann
Contributed-by: NAndreas Woess <andreas.woess@oracle.com>

Summary: Change TypeF:eq and TypeD:eq to compare NaN values using a bitwise comparison.
Reviewed-by: kvn
Contributed-by: NStefan Anzinger <stefan.anzinger@oracle.com>

Summary: C1 intrinsics for System.nanoTime(), System.currentTimeMillis() and JVM.counterTime() should be pinned.
Reviewed-by: kvn, vlivanov, iveresov

Reviewed-by: kvn

8087291: InitialBootClassLoaderMetaspaceSize and CompressedClassSpaceSize should be checked consistent from MaxMetaspaceSize
Reviewed-by: dholmes, sspitsyn, poonam

Summary: Backed out changeset 62c8545a9b6f
Reviewed-by: asaha

8189599: InitialBootClassLoaderMetaspaceSize and CompressedClassSpaceSize should be checked consistent from MaxMetaspaceSize
Reviewed-by: dholmes, sspitsyn, poonam

Summary: C1 intrinsics for System.nanoTime(), System.currentTimeMillis() and JVM.counterTime() should be pinned.
Reviewed-by: kvn, vlivanov, iveresov

Summary: Change class version to version accepted by JDK 8.
Reviewed-by: dholmes, hseigel