8066619: Fix deprecation warnings in java.util.jar Reviewed-by: rriggs, lancea Contributed-by: philipp.kunz@paratix.ch

8215571: jdb does not include jdk.* in the default class filter Reviewed-by: alanb, cjplummer

8215716: PopFrame() was unexpectedly done Reviewed-by: dholmes, sspitsyn

Merge

8215555: TieredCompilation C2 threads can excessively block handshakes Reviewed-by: kvn, neliasso, rehn

8215548: G1PeriodicGCSystemLoadThreshold needs to be a double Summary: Change G1PeriodicGCSystemLoadThreshold to be a double to allow better granularity in determining idleness Reviewed-by: sjohanss, sangheki

8215100: AArch64: fix compareTo intrinsic with four-character Latin/Unicode Reviewed-by: aph, dpochepk Contributed-by: nick.gasson@arm.com

8215551: Missing case label in nmethod::reloc_string_for() Reviewed-by: kvn, mbaesken

8215635: Pandoc check in Docs.gmk does not work on Windows Reviewed-by: tbell, ihse

8215547: ZGC: Fix incorrect match rule for loadBarrierWeakSlowRegNoVec Reviewed-by: eosterlund, neliasso

8215491: ICStubInterface::finalize finds zombie nmethod with ZGC concurrent class unloading Reviewed-by: dlong, coleenp

8215500: ICRefillVerifierMark does not set the provided verfier as current Reviewed-by: pliden, thartmann

Added tag jdk-12+25 for changeset 7496df94b3b7

8214532: Update RFC 2459 references in javadoc to RFC 5280 Reviewed-by: mullan

8215687: [Graal] unit test CheckGraalIntrinsics failed after 8212043 Summary: add check for new intrinsics Reviewed-by: iveresov, iignatyev

8198526: getAnnotatedOwnerType does not handle static nested classes correctly Reviewed-by: jfranck