8220623: [JVMCI] Update JVMCI to support JVMCI based Compiler compiled into shared library Reviewed-by: dnsimon, never, stefank, rehn, neliasso, dholmes, kbarrett, coleenp

8222744: add support for generating method handles from a variable symbol Reviewed-by: mcimadamore

8202414: Unsafe write after primitive array creation may result in array length change Summary: Avoided collecting unaligned stores in Initialize node by making can_capture_store return false for same Reviewed-by: dlong, kvn, vlivanov

8223078: Add microbenchmark for array copying/clearing/resizing Reviewed-by: dl, redestad

8223190: Test gc/arguments/TestShrinkHeapInSteps.java breaks with change for JDK-8074355 Summary: Remove too strict assert. Reviewed-by: hseigel

8223184: Shenandoah: Missing roots in SRP::process_all_roots_slow Reviewed-by: shade

8074355: make MutexLocker smarter about non-JavaThreads Summary: Use safepoint_check_always/safepoint_check_never instead of safepoint_check_sometimes for locks that are taken by JavaThreads and non-JavaThreads Reviewed-by: dholmes, rehn, dcubed, lmesnik

8213399: DecoderLocker is unused Summary: remove DecoderLocker Reviewed-by: iklam, dholmes

8223146: [TESTBUG] new test vmTestbase/nsk/share/ExceptionCheckingJniEnv/exceptionjni001/ fails on Windows Summary: Keep it simple and handle INT32_MIN separately Reviewed-by: dholmes, sspitsyn

8222821: com/sun/jdi/ExceptionEvents.java failed Reviewed-by: dlong, sspitsyn, jcbeyler, cjplummer

8215113: Sampling interval not always correct Summary: Fix the sampling interval Reviewed-by: phh, sspitsyn

8222137: Remove T-Systems root CA certificate Reviewed-by: mullan

8216577: Add GlobalSign's R6 Root certificate Reviewed-by: mullan, clanger

8222913: Add Jib support for VERSION_EXTRA* Reviewed-by: tbell, mikael

8222749: vmTestbase/nsk/jdi/ThreadStartRequest/addThreadFilter/addthreadfilter001/TestDescription.java failed with "eventSet1.size() != 3 :: 2" Reviewed-by: sspitsyn, jcbeyler