Summary: ported TenantDataIsolation to Dragonwell

Test Plan: jdk/test/multi-tenant

Reviewed-by: yuleil, superajun-wsj

Issue: https://github.com/alibaba/dragonwell8/issues/84

Summary: ported MultiTenant framework to Dragonwell8

Test Plan: jdk/test/multi-tenant

Reviewed-by: yuleil, sanhong

Issue: https://github.com/alibaba/dragonwell8/issues/84

Summary:
Introduce ResourceContainer to manage resources.
ResourceContainer defines a set of resource Constraint
that limit resource usage by threads.

Test Plan: jtreg com/alibaba/rcm

Reviewed-by: luchsh, sanhong

Issue: alibaba/dragonwell8#87

Summary: G1ElasticHeap to support heap shrink/expansion in runtime

Test Plan:
test/elastic-heap/

Reviewers:
luchsh, sanhong

Issue:
https://github.com/alibaba/dragonwell8/issues/46

CR:
https://github.com/alibaba/dragonwell8_jdk/pull/1

Summary:
Backport of JFR(jdk part) to dragonwell based on JFR preview version(JDK11).
Link:
http://cr.openjdk.java.net/~mgronlun/JEP328_FlightRecorder/Preview/webrev/index.html

Test Plan: test/jdk/jfr/

Reviewers: 卓昂, 传胜, 麦庶, yumin.qi, 三红, 芳玺

Reviewed By: 三红, 芳玺, 卓昂, yumin.qi

Differential Revision: https://aone.alibaba-inc.com/code/D818249

Reviewed-by: smarks, rriggs, igerasim, ahgross, skoivu, andrew
Contributed-by: NDavid Alvarez <alvdavi@amazon.com>

Summary: Remove ClassLoader.domains
Reviewed-by: coleenp, dholmes, mchung, naoto

Reviewed-by: andrew

Reviewed-by: jfranck, psandoz

Summary: Cache default method handles.
Reviewed-by: mchung, plevart

8207152: Placeholder for Japanese new era should be two characters
8211398: Square character support for the Japanese new era
8180469: Wrong short form text for supplemental Japanese era
8206120: Add test cases for lenient Japanese era parsing
8218915: Change isJavaIdentifierStart and isJavaIdentifierPart to handle new code points
8217710: Add 5 currency code points to Java SE 8uX
Reviewed-by: coffeys, naoto
Contributed-by: deepak.kejriwal@oracle.com

Reviewed-by: chegar, naoto, rriggs, coffeys
Contributed-by: deepak.kejriwal@oracle.com

Reviewed-by: ahgross, jrose

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

Reviewed-by: jrose, redestad, vlivanov, ahgross

Reviewed-by: jrose, redestad, vlivanov, ahgross

Summary: Race can occur between Proxy.getProxyClass and Proxy.isProxyClass
Reviewed-by: mchung

Reviewed-by: chegar

Reviewed-by: chegar

Reviewed-by: chegar, psandoz

Summary: Race can occur between Proxy.getProxyClass and Proxy.isProxyClass
Reviewed-by: mchung

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

Reviewed-by: jrose, ahgross, mchung

Reviewed-by: jrose, vlivanov, ahgross

Reviewed-by: vlivanov, mhaupt, ahgross

Reviewed-by: chegar

Reviewed-by: chegar, psandoz

Reviewed-by: vlivanov, acorn, jrose

Reviewed-by: psandoz

8154017: Shutdown hooks are racing against shutdown sequence, if System.exit()-calling thread is interrupted
Reviewed-by: coffeys

Reviewed-by: dholmes, chegar

Reviewed-by: chegar, psandoz

Reviewed-by: kvn

Reviewed-by: mchung, alanb

Reviewed-by: psandoz

Reviewed-by: jrose

Reviewed-by: jrose

Reviewed-by: jrose

Reviewed-by: jrose, plevart, forax

Reviewed-by: jrose, kvn