8199712: Flight Recorder
8203346: JFR: Inconsistent signature of jfr_add_string_constant
8195817: JFR.stop should require name of recording
8195818: JFR.start should increase autogenerated name by one
8195819: Remove recording=x from jcmd JFR.check output
8203921: JFR thread sampling is missing fixes from JDK-8194552
8203929: Limit amount of data for JFR.dump
8203664: JFR start failure after AppCDS archive created with JFR StartFlightRecording
8003209: JFR events for network utilization
8207392: [PPC64] Implement JFR profiling
8202835: jfr/event/os/TestSystemProcess.java fails on missing events
Summary: Backport JFR from JDK11. Initial integration
Reviewed-by: neugens

8156137: SIGSEGV in ReceiverTypeData::clean_weak_klass_links
8057570: RedefineClasses() tests fail assert(((Metadata*)obj)->is_valid()) failed: obj is valid
Reviewed-by: coleenp

8156137: SIGSEGV in ReceiverTypeData::clean_weak_klass_links
8057570: RedefineClasses() tests fail assert(((Metadata*)obj)->is_valid()) failed: obj is valid
Reviewed-by: coleenp

Reviewed-by: jrose, coleenp, ahgross, acorn, vlivanov

Summary: Use Patching_lock to synchronize access between set_code() and clear_code().
Reviewed-by: kvn, dlong

Summary: Method::deallocate_contents() should clear 'this' from list of Methods in JNIMethodBlock, when class is unloaded.
Reviewed-by: coleenp, dholmes

Summary: Track initialized final field updates; disable constant folding if an update is detected.
Reviewed-by: vlivanov, dnsimon, forax, never, kvn, coleenp

Summary: Method::deallocate_contents() should clear 'this' from list of Methods in JNIMethodBlock, when class is unloaded.
Reviewed-by: coleenp, dholmes

Reviewed-by: iklam, acorn, mschoene

Reviewed-by: iklam, acorn, mschoene

Reviewed-by: coleenp

Reviewed-by: coleenp

Reviewed-by: kvn

8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
Summary: optimize the adjust_method_entries functions by using the orig_method_idnum() function
Reviewed-by: coleenp, dcubed

Summary: Relax the guaranty for deleted methods
Reviewed-by: dcubed, coleenp

8056071: compiler/whitebox/IsMethodCompilableTest.java fails with 'method() is not compilable after 3 iterations'
Summary: Always use MDO if valid and always compile trivial methods with C1 if available.
Reviewed-by: kvn, iveresov

Summary: Fixed Whitebox.deoptimizeMethod() to deoptimize all OSR versions of the method.
Reviewed-by: kvn, iignatyev

Summary: Ensure MethodCounters are created before method is enqueued for compilation
Reviewed-by: kvn, drchase, jiangli, roland

Summary: Only prune metaspace virtual spaces at safepoint so walking them is safe outside a safepoint.
Reviewed-by: mgerdin, mgronlun, hseigel, stefank

Reviewed-by: kvn, iveresov

Summary: Keep class in CLD::_klasses list and mirror created for CDS classes if OOM during restore_shareable_info(). This keeps pointers consistent for CMS.
Reviewed-by: ehelin, stefank, jmasa, iklam

8156137: SIGSEGV in ReceiverTypeData::clean_weak_klass_links
8057570: RedefineClasses() tests fail assert(((Metadata*)obj)->is_valid()) failed: obj is valid
Reviewed-by: coleenp

Summary: memory ordering fixes in GC and other runtime code showing on PPC64.
Reviewed-by: kvn, coleenp

Summary: New default methods list with inherited superinterface methods
Reviewed-by: minqi, sspitsyn, coleenp

Reviewed-by: kvn

Summary: Enhance method resolution and resulting data structures, plus some refactoring.
Reviewed-by: twisti, acorn, jrose

Reviewed-by: kvn, twisti

Summary: With NPG, const KlassOop klass which is in fact a definition converted to Klass* const, which is not the original intention. The right usage is converting them to const Klass*.
Reviewed-by: coleenp, kvn
Contributed-by: yumin.qi@oracle.com

Summary: Fixed broken Zero build.
Reviewed-by: twisti, coleenp, kvn

8010460: Interpreter on some platforms loads ConstMethod::_max_stack and misses extra stack slots for JSR 292
Summary: ConstMethod::max_stack() doesn't account for JSR 292 appendix.
Reviewed-by: kvn

Summary: Allocate the method's profiling related metadata until they are needed.
Reviewed-by: coleenp, roland

Reviewed-by: kvn, vlivanov

Reviewed-by: kvn, jrose

Summary: Adds code to HotSpot to properly update MethodParameter attributes' constant pool indexes when redefineClasses is called
Reviewed-by: coleenp, sspitsyn

Summary: allocate method annotations and attach to ConstMethod if present
Reviewed-by: dcubed, jiangli, sspitsyn, iklam

Summary: Add/refine new tracing support using -XX:TraceRedefineClasses=16384.
Reviewed-by: coleenp, acorn, sspitsyn

Reviewed-by: kvn, vlivanov
Contributed-by: NIgor Ignatyev <igor.ignatyev@oracle.com>

Summary: jcmd <pid> GC.class_stats (UnlockDiagnosticVMOptions)
Reviewed-by: coleenp, hseigel, sla, acorn
Contributed-by: ioi.lam@oracle.com

Summary: Reordered Klass, InstanceKlass and Method to save 8 bytes each
Reviewed-by: coleenp, jiangli
Contributed-by: ioi.lam@oracle.com

Summary: Add hotspot support for parameter reflection
Reviewed-by: acorn, jrose, coleenp
Contributed-by: eric.mccorkle@oracle.com