8025441: G1: assert "assert(thread < _num_vtimes) failed: just checking" fails when G1ConcRefinementThreads > ParallelGCThreads
Summary: The initialization for the remembered set summary data structures used the wrong thread count, i.e. number of worker threads instead of number of refinement threads.
Reviewed-by: brutisso

Summary: Move some G1 specific code from CardTableModRefBS to G1SATBCardTableModRefBS.
Reviewed-by: brutisso, tschatzl, ehelin

Summary: Only put "Compressed class space" as OOM cause if actually using Compressed class space
Reviewed-by: jwilhelm, stefank, ehelin, coleenp

Summary: Add memory consumption breakdown on a per region type in the G1 remembered set summary statistics. This simplifies remembered set memory consumption analysis.
Reviewed-by: brutisso

Reviewed-by: mgerdin, tschatzl, jmasa

Summary: Add G1BiasedArray<T> that is an array where each element represents a fixed-sized subdivision of the heap. Use this abstraction to refactor the HeapRegionSeq class.
Reviewed-by: brutisso

Summary: use adr_at() to access inline info structures in growableArray. Add ability to specify print inlining per method.
Reviewed-by: twisti

Summary: Allocation in the code cache returns NULL instead of failing the entire VM
Reviewed-by: kvn, iveresov

8025088: Missing cases for JVM_CONSTANT_MethodHandleInError cause crash if debugger steps into error-tagged method handle
Summary: Need to refetch each method from InstanceKlass after all safepoints.  Removed leaky PreviousVersionInfo code.
Reviewed-by: coleenp, sspitsyn

Reviewed-by: sla, dsamersoff
Contributed-by: NYasumasa Suenaga <yasu@ysfactory.dip.jp>

Reviewed-by: coleenp, mgerdin, jmasa

Summary: reference_map[] array had uninitialized junk that was causing a bogus bootstrap method to be found.
Reviewed-by: hseigel, dcubed, sspitsyn

Summary: If SUPPORTS_NATIVE_CX8 true then supports_cx8() function hard coded to return 'true'
Reviewed-by: kvn, twisti, dholmes

Summary: Need to refetch each method from InstanceKlass after all safepoints.  Removed leaky PreviousVersionInfo code.
Reviewed-by: dcubed, sspitsyn

Reviewed-by: coleenp, brutisso, mgerdin, jmasa

Summary: SymbolTable and StringTable can make calls to GC_locker::is_active() outside a safepoint. This isn't safe because the GC_locker active state (lock count) is only updated at a safepoint and only remains valid as long as _needs_gc is true. However, outside a safepoint_needs_gc can change to false at any time, which makes it impossible to do a correct call to is_active() in that context. In this case these calls can just be removed since the input argument to basic_add() should never be on the heap and so there's no need to check the GC_locker state. This change also adjusts the assert() in is_active() to makes sure all calls to this function are always done under a safepoint.
Reviewed-by: brutisso, dcubed
Contributed-by: per.liden@oracle.com

Summary: Make sure CDS is off by default when running server compiler.
Reviewed-by: dholmes, coleenp

Reviewed-by: alanb, chegar, dholmes, ksrini
Contributed-by: NMike Duigou <mike.duigou@oracle.com>

Summary: Add -XX:+VerifyStringTableAtExit option and code to verify StringTable invariants.
Reviewed-by: rdurbin, sspitsyn, coleenp

Summary: Check that the _java_thread parameter is valid when it is possible that the JavaThread has exited after the initial checks were made in generated/jvmtifiles/jvmtiEnter.cpp: jvmti_GetCurrentContendedMonitor()
Reviewed-by: dcubed, dsamersoff

Summary: Provide correct number of visited nmethods to Tracing
Reviewed-by: kvn, iveresov

Reviewed-by: stefank, dholmes, coleenp

Reviewed-by: sla, coleenp, ctornqvi, dsamersoff

Summary: Incorrect usage of idx_t where bm_word_t is appropriate.
Reviewed-by: tschatzl, brutisso
Contributed-by: NDan Horak <dhorak@redhat.com>

Summary: made changes to easily identify current log file in rotation. Parameterize the input with %t for time replacement in file name.
Reviewed-by: ccheung, tschatzl, tamao, zgu
Contributed-by: yumin.qi@oracle.com

Reviewed-by: kamg, minqi

8024396: VM crashing with assert(!UseLargePages || UseParallelOldGC || use_large_pages) failed: Wrong alignment to use large pages
Summary: Loosen wrong assert for UseParallelOldGC to UseParallelGC
Reviewed-by: stefank, brutisso

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

Reviewed-by: kvn, coleenp

8024346: ~CautiouslyPreserveExceptionMark - assert(!_thread->has_pending_exception()) failed: unexpected exception generated
Summary: Pending exceptions must be handled properly after a call to the JVMTI merge_cp_and_rewrite
Reviewed-by: coleenp, dholmes
Contributed-by: serguei.spitsyn@oracle.com

8024345: 'assert(_value != NULL) failed: resolving NULL _value' from VM_RedefineClasses::set_new_constant_pool
Summary: The OOME's in the JVMTI merge_cp_and_rewrite and set_new_constant_pool must be handled correctly
Reviewed-by: coleenp, dholmes
Contributed-by: serguei.spitsyn@oracle.com

8017230: Internal Error (jvmtiRedefineClasses.cpp:1662): guarantee(false) failed: insert_space_at() failed
Summary: Handle pending exceptions instead of firing a guarantee()
Reviewed-by: coleenp, dholmes
Contributed-by: serguei.spitsyn@oracle.com

Reviewed-by: allwin, acorn, dcubed, dholmes, egahlin

Reviewed-by: twisti, kvn, sla

Reviewed-by: brutisso, tschatzl

Reviewed-by: brutisso, mgerdin, coleenp

Reviewed-by: jmasa, brutisso

Reviewed-by: jwilhelm, brutisso, tschatzl

Reviewed-by: brutisso, mgerdin, coleenp, jmasa

8024275: During CTW: assert(sig_bt[member_arg_pos] == T_OBJECT) failed: dispatch argument must be an object
Reviewed-by: kvn, vlivanov