8221836: Avoid recalculating String.hash when zero Reviewed-by: jrose, adinn Contributed-by: peter.levart@gmail.com, claes.redestad@oracle.com

8219241: Provide basic virtualization related info in the hs_error file on linux/windows x86_64 Reviewed-by: dholmes, mdoerr

Merge

8216039: TLS with BC and RSASSA-PSS breaks ECDHServerKeyExchange Summary: Add internal Signature init methods to select provider based on both key and parameter Reviewed-by: xuelei

8221853: Data race in compile broker (set_last_compile) Summary: Remove the debug code provoking it Reviewed-by: kvn, thartmann

8221430: StringBuffer(CharSequence) constructor truncates when -XX:-CompactStrings specified Reviewed-by: igerasim, rriggs Contributed-by: Andrew Leonard <andrew_m_leonard@uk.ibm.com>, Ivan Gerasimov <ivan.gerasimov@oracle.com>

8222229: ProblemList compiler/jsr292/InvokerSignatureMismatch.java Reviewed-by: iignatyev

8222227: Shenandoah: Fix Traversal GC weak roots handling in final-traversal pause Reviewed-by: shade, zgu

8222186: Shenandoah should not uncommit below minimum heap size Reviewed-by: zgu, rkennke

8222185: Shenandoah should report "committed" as capacity Reviewed-by: zgu, rkennke

8221852: SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE should be selected at runtime, not build time Reviewed-by: alanb, shade

8221924: get(null) on single-entry unmodifiable Map returns null instead of throwing NPE Reviewed-by: redestad, lancea

8221658: aarch64: add necessary predicate for ubfx patterns Reviewed-by: aph

8221894: Add comments for docker tests in the test doc Reviewed-by: erikj, dholmes

8020637: Permissions.readObject doesn't enforce proper Class to PermissionCollection mappings Reviewed-by: weijun

8222144: BuiltinClassLoader should create the CodeSource for jrt URLs lazily Reviewed-by: alanb

8221535: add steal tick related information to hs_error file [linux] Reviewed-by: dholmes, goetz

8221584: SIGSEGV in os::PlatformEvent::unpark() in JvmtiRawMonitor::raw_exit while posting method exit event Reviewed-by: dholmes, dcubed Contributed-by: robbin.ehn@oracle.com, stefan.karlsson@oracle.com

8218458: [TESTBUG] runtime/NMT/CheckForProperDetailStackTrace.java fails with Expected stack trace missing from output Reviewed-by: cjplummer, zgu

8218049: Survivor MemoryMXBean used() size granularity is region based Reviewed-by: tschatzl, kbarrett

8222105: Add "use_" prefix to G1Policy::adaptive_young_list_length Summary: Improve naming of G1Policy::adaptive_young_list_length to improve readability. Reviewed-by: kbarrett

8218668: Clean up evacuation of optional collection set Summary: Better integrate optional collection set evacuation into the existing evacuation scheme, fixing a few minor issues with the initial implementation. Reviewed-by: kbarrett, sangheki

8216551: GraalUnitTestLauncher should be executed as '@run driver' Reviewed-by: dlong, kvn

8222130: Shenandoah should verify roots after pre-evacuation Reviewed-by: rkennke, zgu

8222133: Add temporary exceptions for root certs that are due to expire soon Reviewed-by: xuelei

8222086: CodeCache::UnloadingScope needs to preserve and restore previous IsUnloadingBehavior Reviewed-by: eosterlund

8221730: jcmd process name matching broken Reviewed-by: jcbeyler, dholmes, cjplummer

8222027: java/util/logging/LogManager/TestLoggerNames.java generates intermittent ClassCastException Summary: Make a strong reference to TestLogger and dont fetch it from LogManager Reviewed-by: dfuchs

8222129: Shenandoah: Missing CompareAndSwapP/N case in get_barrier_strength() Reviewed-by: shade

8222125: Shenandoah: Crash when running with ShenandoahParallelSafepointThreads=1 Reviewed-by: shade