Merge

8213204: ReservedStackTest and ReservedStackTestCompiler tests fail on windows Reviewed-by: fparain, dcubed, jwilhelm

8210837: Add libXrandr-devel to the Linux devkits Reviewed-by: prr, mikael

8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes Reviewed-by: jiangli, jwilhelm

8212481: PPC64: Enable POWER9 CPU detection Reviewed-by: mdoerr, simonis

8213182: Minimal VM build failure after JDK-8212200 (assert when shared java.lang.Object is redefined by JVMTI agent) Reviewed-by: dholmes, iklam

8213151: [AIX] Some class library files are missing the Classpath exception Reviewed-by: stuefe, rriggs, mbaesken

Merge

8209093: JEP 340: One AArch64 Port, Not Two Reviewed-by: dholmes, erikj, mikael, shade, avoitylov, bulasevich

8213086: Compiler thread creation should be bounded by available space in memory and Code Cache Reviewed-by: kvn, thartmann

8213142: Use RAII to set the scanning source in G1ScanEvacuatedObjClosure Reviewed-by: sangheki, kbarrett

8212911: Unify and micro-optimize handling of non-in-collection set references in oop closures Reviewed-by: kbarrett, sjohanss

8211388: Make OtherRegionsTable independent of the region it is for Reviewed-by: sjohanss, sangheki

6490394: G1: Allow heap shrinking / memory unmapping after reclaiming regions during Remark Reviewed-by: sjohanss, sangheki

8071913: Filter out entries to free/uncommitted regions during iteration Reviewed-by: sjohanss, kbarrett

8213107: Make ClassLoaderDataGraph iterator skip unloaded CLDs Summary: with concurrent class unloading, the CLDG could contain unloaded CLDs while iterating in a safepoint Reviewed-by: lfoltan, eosterlund