8212988: add recent class unloading events to the hs_err log Summary: also moved class unloading logging in expected place. Reviewed-by: never, stuefe

8218695: problem list tests failing with Graal Reviewed-by: kvn

8218807: Compilation database (compile_commands.json) may contain obsolete items Reviewed-by: ihse, erikj

8215790: Delegated task created by SSLEngine throws java.nio.BufferUnderflowException Reviewed-by: jnimeh

8217835: Remove the experimental SunJSSE FIPS compliant mode Reviewed-by: mullan

8218754: JDK-8068225 regression in JDIBreakpointTest Reviewed-by: cjplummer, sspitsyn

8145845: [AOT] NullPointerException in compiler/whitebox/GetCodeHeapEntriesTest.java Reviewed-by: kvn, thartmann

8218738: Remove dead code in Symbol and friends Reviewed-by: coleenp, lfoltan, dholmes

8218136: minor hotspot adjustments for xlclang++ from xlc16 on AIX Reviewed-by: dholmes, goetz, ihse

8218413: make reconfigure ignores configure-time AUTOCONF environment variable Reviewed-by: erikj, martin

8218675: Reduce verification overhead in ClassFileParser Reviewed-by: dholmes, hseigel

8216608: Obsolete stale compiler flags Reviewed-by: shade, thartmann

8214236: sun.gc.collector.2.name should be changed Reviewed-by: pliden, tschatzl

8218680: G1 crashes during calculation of old collection set candidates Summary: Parameters were passed in the wrong order to some helper class. Reviewed-by: shade, kbarrett, lkorinth

8217383: Obsolete UseImplicitStableValues Reviewed-by: shade, rkennke, vlivanov

8218562: handle HOTSPOT_BUILD_COMPILER for clang/xlclang and cleanup HOTSPOT_BUILD_COMPILER settings Reviewed-by: dholmes, ihse, mdoerr