Summary: Change the Wisp flag to experimental

Test Plan: all Wisp tests

Reviewed-by: yuleil, shiyuexw, sanhong

Issue: https://github.com/alibaba/dragonwell8/issues/113

Summary: Fix build failure of the two platforms

Test Plan: Successfully generate builds of the two platforms

Reviewed-by: yuleil, shiyuexw, sanhong

Issue: https://github.com/alibaba/dragonwell8/issues/113

Summary: Add Hotspot code of the Wisp implementation

Test Plan: all Wisp tests

Reviewed-by: yuleil, shiyuexw, sanhong

Issue: https://github.com/alibaba/dragonwell8/issues/113

Summary: Bug fixes for JKU coroutine
The JKU patch has several flaws:
1. When using JDI to debug coroutine, it may crash because the _switchTo intrinsic entry will change to the interpreter one, which is a SHOULD_NOT_REACH_HERE().
2. Change miscellaneous thread-local data structures to coroutine-local level during _switchTo phase.
3. Disable making zombies of _switchTo alike intrinsic things.
4. Fix multiple mem leak problems for coroutine data structures.
5. Create an empty JNIHandleBlock for the first Java call.
6. The stack layout of Coroutine doesn't align with 16 bytes on x86_64 which will cause some float point instructions to throw an sig fault.
7. etc.

Test Plan: Coroutine tests

Reviewed-by: yuleil, shiyuexw, sanhong

Issue: https://github.com/alibaba/dragonwell8/issues/113

8233197: Invert JvmtiExport::post_vm_initialized() and Jfr:on_vm_start() start-up order for correct option parsing
8246703: [TESTBUG] Add test for JDK-8233197
Reviewed-by: aph, adinn, neugens

Reviewed-by: mbalao

Summary:
- add a warning of large array allocation
- port D3674 to dragonwell

Test Plan: test/runtime/memory/TestArrayAllocationWarning.java

Reviewers: 传胜

Differential Revision: https://aone.alibaba-inc.com/code/D851704

Summary: Re-remove test removed by JDK-8231463
Reviewed-by: phh, andrew

Reviewed-by: andrew

Reviewed-by: shade, andrew

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

Reviewed-by: acorn, hseigel, ahgross, rhalade

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

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

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

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

Summary: Fix method searches to handle static, private instance and overpass
Reviewed-by: acorn

Reviewed-by: hseigel

Reviewed-by: hseigel

Summary: Backport change to correct interface initialization.
Reviewed-by: gtriantafill, sspitsyn, dholmes

Summary: A new test verifies that tracing output occurs with the switch enabled.
Reviewed-by: dholmes, phh
Contributed-by: NXin Liu <xxinliu@amazon.com>

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

Summary: extract processor count from sched_getaffinity mask
Reviewed-by: dholmes, gthornbr

Summary: extract processor count from sched_getaffinity mask
Reviewed-by: dholmes, gthornbr

Summary: extract processor count from sched_getaffinity mask
Reviewed-by: dholmes, gthornbr

Reviewed-by: vkempik, shshahma

Summary: extract processor count from sched_getaffinity mask
Reviewed-by: dholmes, gthornbr

8042660: vm/mlvm/anonloader/stress/byteMutation failed with: assert(index >=0 && index < _length) failed: symbol index overflow
Summary: Detect zero length signatures and throw ClassFormatError before bad dereference occurs
Reviewed-by: hseigel

Summary: Illegal bytecodes which are detected later hit this assert first.
Reviewed-by: jrose

8131333: [TESTBUG] RedefineRunningMethodsWithResolutionErrors.java Improperly specified VM option 'TraceRedefineClasses=0x600'
Reviewed-by: coleenp, sspitsyn

Summary: Fix up GPL headers so that the RE script works.
Reviewed-by: stefank, dholmes, coleenp

Reviewed-by: stuefe, dsamersoff, dcubed