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

Reviewed-by: coleenp, mgerdin, jmasa

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

8023542: Test java/io/File/CheckPermission.java fails due to unfinished recursion (java.lang.StackOverflowError) when JIT'ed code (-client,-server) is running
Summary: Move null check before klass reference materialization in checkcast
Reviewed-by: kvn, roland

8024669: Native OOME when allocating after changes to maximum heap supporting Coops sizing on sparcv9
Summary: After changes in 8010722 the ergonomics for calculating the size of the heap that supports zero based compressed oops changed. This lead to the VM actually using zero based compressed oops. Due to low default HeapBaseMinAddress, the OS mapping in the application image at the same address, and limitations of the malloc implementation on Solaris this resulted in very little C heap available for the VM. So the VM immediately gives a native OOME when the machine has lots of physical memory (>=32G). The solution is to increase the HeapBaseMinAddress so that the VM has enough C heap.
Reviewed-by: kvn, brutisso

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

Reviewed-by: stefank, dholmes, coleenp

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

8024128: guarantee(codelet_size > 0 && (size_t)codelet_size > 2*K) failed: not enough space for interpreter generation
Summary: Increase interpreter size for x86 template interpreter
Reviewed-by: kvn, iveresov

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

Summary: Cleanup and document how various Linux release info files are used by print_distro_info().
Reviewed-by: dcubed, dsamersoff, coleenp, iklam, omajid
Contributed-by: gerald.thornbrugh@oracle.com

6900441: PlatformEvent.park(millis) on Linux could still be affected by changes to the time-of-day clock
Summary: Associate CLOCK_MONOTONIC with the pthread_cond_t objects used for relative timed waits
Reviewed-by: dcubed, shade

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

Summary: We already have GrowableArray, use it instead of LRG_List
Reviewed-by: kvn

Reviewed-by: brutisso, ehelin

Reviewed-by: stefank, hseigel, mgerdin

Summary: Minor cleanup of static agent code from 8014135
Reviewed-by: dcubed, sspitsyn

Summary: Use conservative assumptions of required alignment for the various garbage collector components into account when determining the maximum heap size that supports compressed oops. Using this conservative value avoids several circular dependencies in the calculation.
Reviewed-by: stefank, dholmes

Summary: Correctly calculate the initialization value for the shift between object start and bitmap bit in the G1 mark bitmaps.
Reviewed-by: tonyp

Summary: Correctly pass the requested base address for the heap to the OS function to reserve memory.
Reviewed-by: brutisso, stefank

Summary: Use best-fit block-splitting freelist allocation from the block freelist.
Reviewed-by: jmasa, stefank

Summary: Lowered the MinJumpTableSize for each platform
Reviewed-by: kvn