8072061: Automatically determine optimal sizes for the CDS regions
Summary: See new C++ class MetaspaceClosure.
Reviewed-by: coleenp, jiangli, mseledtsov

8183039: Re-examine methodHandle methods uninlined by 8144256
Summary: Add more const references so out-of-line methodHandle destructor and copy ctor called infrequently
Reviewed-by: hseigel, redestad

8183552: Move align functions to align.hpp
Reviewed-by: stuefe, pliden

8178499: Remove _ptr_ and _size_ infixes from align functions
Reviewed-by: rehn, tschatzl

8178489: Make align functions more type safe and consistent
Reviewed-by: mgerdin, rehn

Merge

8176705: Remove static functions in InstanceKlass
Summary: Change static functions to instance functions and remove their 'this_k' parameters.
Reviewed-by: dholmes, mgerdin, iklam

8155672: Remove instanceKlassHandles and KlassHandles
Summary: Summary: Use unhandled pointers for Klass and InstanceKlass, remove handles with no implementation.
Reviewed-by: dholmes, lfoltan, vlivanov, sspitsyn

8005165: Remove CPU-dependent code in self-patching vtables
Reviewed-by: coleenp, stuefe, jiangli

8170812: Metaspace corruption caused by incorrect memory size for MethodCounters
Reviewed-by: kbarrett, coleenp

8171960: Event-based tracing needs separate flag representation for Method
Reviewed-by: hseigel, gtriantafill, dholmes

8171008: Integrate AOT compiler into JDK
Reviewed-by: erikj, mchung, psandoz, coleenp, iklam, stefank, simonis
Contributed-by: Bharadwaj Yadavalli <bharadwaj.yadavalli@oracle.com>, Christian Thalinger <cthalinger@twitter.com>, Dean Long <dean.long@oracle.com>, Dmitrij Pochepko <dmitrij.pochepko@oracle.com>, Dmitry Chuyko <dmitry.chuyko@oracle.com>, Doug Simon <doug.simon@oracle.com>, Eric Caspole <eric.caspole@oracle.com>, Igor Ignatyev <igor.ignatyev@oracle.com>, Igor Veresov <igor.veresov@oracle.com>, John Rose <john.r.rose@oracle.com>, Morris Meyer <morris.meyer@oracle.com>, Niclas Adlertz <niclas.adlertz@oracle.com>, Rickard Backman <rickard.backman@oracle.com>

8166377: is_compiled_by_jvmci hot in some profiles - improve nmethod compiler type detection
Summary: Refactor code removing virtual call
Reviewed-by: kvn, twisti

8153134: Infinite loop in handle_wrong_method in jmod
Summary: Use Patching_lock to synchronize access between set_code() and clear_code().
Reviewed-by: kvn, dlong

8081800: AbstractMethodError when evaluating a private method in an interface via debugger
Reviewed-by: acorn, dcubed, coleenp

8153312: Constrain AppCDS behavior
Reviewed-by: iklam, acorn, mschoene

Merge

8157181: Compilers accept modification of final fields outside initializer methods
Summary: Track initialized final field updates; disable constant folding if an update is detected. Enforce final field update rules introduced by JVMS-7 (but only for JDK 9).
Reviewed-by: vlivanov, dnsimon, forax, never, kvn, coleenp

8153858: Clean up needed when obtaining the package name from a fully qualified class name
Summary: Consolidated and refactored code parsing fully qualified names. Includes gtest.
Reviewed-by: dholmes, coleenp

Merge

8151956: Support non-continuous CodeBlobs in HotSpot
Reviewed-by: iveresov, thartmann, simonis

Merge

8148195: Some InstanceKlass and MethodCounters fields can be excluded when JVMTI is not supported
Summary: Removed "previous version", "cached class file", and breakpoint related fields and code when JVMTI is not supported
Reviewed-by: coleenp, sspitsyn

8146518: Zero interpreter broken with better byte behaviours
Summary: replaced Method::_result_type_index with Method::_result_type for better byte behaviours should be used for Zero also.
Reviewed-by: roland, kvn, bdelsart, kevinw

Merge

8145221: Use trampolines for i2i and i2c entries in Methods that are stored in CDS archive
Summary: This optimization reduces the size of the RW region of the CDS archive. It also reduces the amount of pages in the RW region that are actually written into during runtime.
Reviewed-by: dlong, iklam, jiangli
Contributed-by: ioi.lam@oracle.com, calvin.cheung@oracle.com, goetz.lindenmaier@sap.com

8148639: Some MethodCounter fields can be excluded when not including C2
Summary: Removed _interpreter_invocation_count and _interpreter_throwout_count fields for C1
Reviewed-by: kvn, coleenp

8151130: [BACKOUT] Remove Method::_method_data for C1
Summary: Backing out the fix for JDK-8147978 because it fails and blocks integration.
Reviewed-by: vlivanov, zmajo

8147978: Remove Method::_method_data for C1
Summary: Method::_method_data field removed when not using C2 or JVMCI
Reviewed-by: dholmes, kvn

8145628: hotspot metadata classes shouldn't use HeapWordSize or heap related macros like align_object_size
Summary: Use align_metadata_size, align_metadata_offset and is_metadata_aligned for metadata rather than align_object_size, etc. Use wordSize rather than HeapWordSize for metadata. Use align_ptr_up rather than align_pointer_up (all the related functions are ptr).
Reviewed-by: hseigel, jmasa, cjplummer

Merge

8141564: Convert TraceItables and PrintVtables to Unified Logging
Summary: The former -XX:+TraceItables and +PrintVtables flags have been converted to UL options -Xlog:itables=trace and vtables=trace
Reviewed-by: acorn, coleenp, dholmes

Merge

8134994: use separate VMStructs databases for SA and JVMCI
Reviewed-by: kbarrett

8046936: JEP 270: Reserved Stack Areas for Critical Sections
Reviewed-by: acorn, dcubed

8140485: Class load and creation cleanup
Reviewed-by: hseigel, coleenp, sspitsyn

Merge

8140650: Method::is_accessor should cover getters and setters for all types
Reviewed-by: vlivanov, coleenp, sgehwolf

8140274: methodHandles and constantPoolHandles should be passed as const references
Summary: modified code to use const reference parameters
Reviewed-by: sspitsyn, twisti

Merge

8135284: Remove Method::_method_size field
Summary: Remove Method::_method_size to improve memory footprint after JDK-8135085,which increased 4 bytes for 32 platform. Also removed related unused code in SA.
Reviewed-by: coleenp, hseigel

8136421: JEP 243: Java-Level JVM Compiler Interface
Reviewed-by: ihse, alanb, roland, coleenp, iveresov, kvn, kbarrett

8135085: Change Method::_intrinsic_id from u1 to u2
Summary: Convert Method::_intrinsic_id from u1 to u2 to expand id range over 255.
Reviewed-by: coleenp, iklam, jiangli
Contributed-by: aleksey.shipilev@oracle.com

8025692: Log what methods are touched at run-time
Summary: Added two diagnostic flags, LogTouchedMethods and PrintTouchedMethodsAtExit to list all methods that have been touched at run time. Added new jcmd, VM.print_touched_methods.
Reviewed-by: acorn, iklam

8076112: Add @HotSpotIntrinsicCandidate annotation to indicate methods for which Java Runtime has intrinsics
Summary: Annotate possibly intrinsified methods with @HotSpotIntrinsicCandidate. Add checks omitted by intrinsics to the library code. Add CheckIntrinsics flags to check consistency of intrinsics.
Reviewed-by: jrose, kvn, thartmann, vlivanov, abuckley, darcy, ascarpino, briangoetz, alanb, aph, dnsimon

8074551: GWT can be marked non-compilable due to deopt count pollution
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
Contributed-by: serguei.spitsyn@oracle.com

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

8062116: JVMTI GetClassMethods is Slow
Summary: Allocate enough space for all jmethodids; make adding a jmethodid O(1)
Reviewed-by: coleenp, rasbold, sspitsyn

8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
Summary: Fixed Whitebox.deoptimizeMethod() to deoptimize all OSR versions of the method.
Reviewed-by: kvn, iignatyev

8058564: Tiered compilation performance drop in PIT
Summary: Ensure MethodCounters are created before method is enqueued for compilation
Reviewed-by: kvn, drchase, jiangli

8055008: Clean up code that saves the previous versions of redefined classes
Summary: Use scratch_class to find EMCP methods for breakpoints if the old methods are still running.
Reviewed-by: dcubed, sspitsyn

8051398: jvmti tests fieldacc002, fieldmod002 fail in nightly with errors: (watch#0) wrong location
Summary: Didn't handle NULL bcp for native methods
Reviewed-by: dcubed, sspitsyn

8004128: NPG: remove stackwalking in Threads::gc_prologue and gc_epilogue code
Summary: remove bcx and mdx handling. We no longer have to convert bytecode pointers to indices for GC since Methods aren't moved.
Reviewed-by: mgerdin, kvn

Merge

8042796: jvmtiRedefineClasses.cpp: guarantee(false) failed: OLD and/or OBSOLETE method(s) found
Summary: Relax the guaranty for deleted methods
Reviewed-by: dcubed, coleenp
Contributed-by: serguei.spitsyn@oracle.com

8038212: Method::is_valid_method() check has performance regression impact for stackwalking
Summary: Only prune metaspace virtual spaces at safepoint so walking them is safe outside a safepoint.
Reviewed-by: mgerdin, mgronlun, hseigel, stefank

8023461: Thread holding lock at safepoint that vm can block on: MethodCompileQueue_lock
Reviewed-by: kvn, iveresov

8032463: VirtualDispatch test timeout with DeoptimizeALot
Summary: Introduce code aging for warm method detection
Reviewed-by: kvn, twisti

8036956: remove EnableInvokeDynamic flag
Summary: The EnableInvokeDynamic flag and all support code is removed because it is not longer used in JDK 9.
Reviewed-by: kvn, twisti
Contributed-by: Tobias Hartmann <tobias.hartmann@oracle.com>

8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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

Merge

8037970: make PrintMethodData a diagnostic options
Summary: make PrintMethodData a diagnostic options for performance investigation
Reviewed-by: kvn, iveresov

8031820: NPG: Fix remaining references to metadata as oops in comments
8012125: Comments for ConstantPoolCache should reflect the addition of resolved_references in ConstantPool
Summary: Updated comments in metadata header files, and renamed this_oop variables to this_cp or this_k when referring to constant pool or classes.
Reviewed-by: stefank, jmasa

8037043: put Method flag bits in predictable positions
Reviewed-by: kvn, coleenp

Merge

8029396: PPC64 (part 212): Several memory ordering fixes in C-code.
Summary: memory ordering fixes in GC and other runtime code showing on PPC64.
Reviewed-by: kvn, coleenp

8025856: Fix typos in the GC code
Summary: Fix about 440 typos in comments in the VM code
Reviewed-by: mgerdin, tschatzl, coleenp, kmo, jcoomes

Merge

8025566: EXCEPTION_ACCESS_VIOLATION in compiled by C1 String.valueOf method
Reviewed-by: kvn

8009130: Lambda: Fix access controls, loader constraints.
Summary: New default methods list with inherited superinterface methods
Reviewed-by: minqi, sspitsyn, coleenp

8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
Summary: Enhance method resolution and resulting data structures, plus some refactoring.
Reviewed-by: twisti, acorn, jrose

8023976: assert(!CompilationPolicy::can_be_compiled(this, comp_level)) failed: sanity check
Reviewed-by: kvn, twisti

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

Merge

8003557: NPG: Klass* const k should be const Klass* k.
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

8013067: Zero builds are broken after 8010862.
Summary: Fixed broken Zero build.
Reviewed-by: twisti, coleenp, kvn

Merge

8010862: The Method counter fields used for profiling can be allocated lazily.
Summary: Allocate the method's profiling related metadata until they are needed.
Reviewed-by: coleenp, roland

8007288: Additional WB API for compiler's testing
Reviewed-by: kvn, vlivanov

7198429: need checked categorization of caller-sensitive methods in the JDK
Reviewed-by: kvn, jrose

8007153: Ensure that MethodParameters API works properly with RedefineClasses
Summary: Adds code to HotSpot to properly update MethodParameter attributes' constant pool indexes when redefineClasses is called
Reviewed-by: coleenp, sspitsyn

8007320: NPG: move method annotations
Summary: allocate method annotations and attach to ConstMethod if present
Reviewed-by: dcubed, jiangli, sspitsyn, iklam

Merge

7182152: Instrumentation hot swap test incorrect monitor count
Summary: Add/refine new tracing support using -XX:TraceRedefineClasses=16384.
Reviewed-by: coleenp, acorn, sspitsyn

Merge

8006613: adding reason to made_not_compilable
Reviewed-by: kvn, vlivanov
Contributed-by: Igor Ignatyev <igor.ignatyev@oracle.com>

Merge

8006280: Need to reorder metadata structures to reduce size (64-bit)
Summary: Reordered Klass, InstanceKlass and Method to save 8 bytes each
Reviewed-by: coleenp, jiangli
Contributed-by: ioi.lam@oracle.com

6479360: PrintClassHistogram improvements
Summary: jcmd <pid> GC.class_stats (UnlockDiagnosticVMOptions)
Reviewed-by: coleenp, hseigel, sla, acorn
Contributed-by: ioi.lam@oracle.com

Merge

8001341: SIGSEGV in methodOopDesc::fast_exception_handler_bci_for(KlassHandle,int,Thread*)+0x3e9.
Summary: Use methodHandle.
Reviewed-by: coleenp, acorn, twisti, sspitsyn

8004728: Add hotspot support for parameter reflection
Summary: Add hotspot support for parameter reflection
Reviewed-by: acorn, jrose, coleenp
Contributed-by: eric.mccorkle@oracle.com

Merge

8004823: Add VM support for type annotation reflection
Reviewed-by: dholmes, coleenp
Contributed-by: joel.franck@oracle.com

8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
Summary: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
Reviewed-by: coleenp, minqi, jrose

Merge

8003848: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod.
Summary: Make ConstMethod::generic_signature_index optional and move Method::_max_stack to ConstMethod.
Reviewed-by: bdelsart, sspitsyn, coleenp

8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
Summary: Make metaspace::contains be lock free and used to see if something is in metaspace, also compare Method* with vtbl pointer.
Reviewed-by: dholmes, sspitsyn, dcubed, jmasa

8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
Summary: Change types of above methods and field to InstanceKlass and remove unneeded casts from the source files.
Reviewed-by: dholmes, coleenp, zgu
Contributed-by: harold.seigel@oracle.com

7200776: Implement default methods in interfaces
Summary: Add generic type analysis and default method selection algorithms
Reviewed-by: coleenp, acorn

7200001: failed C1 OSR compile doesn't get recompiled with C2
Reviewed-by: kvn

7195867: NPG: SAJDI tests fail with sun.jvm.hotspot.types.WrongTypeException: No suitable match for type
Summary: Need to restore the vtable in metadata when we restore the type from the shared archive.
Reviewed-by: acorn, jcoomes, jmasa, jrose

6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>