Summary: Enforce MaxMetaspaceSize for both metaspace parts, check MaxMetaspaceSize against "reserved", not "capacity"
Reviewed-by: jmasa, johnc

Summary: If the marking stack overflows while the marking tasks are draining the SATB buffers, remark will exit with some SATB buffers left unprocessed. Relax the guarantee to allow for overflow.
Reviewed-by: jmasa, brutisso

Summary: Skip reference processing if the global marking stack overflows during remark. Refactor and rename set_phase(); move code that sets the concurrency level into its own routine. Do not call set_phase() from within parallel reference processing; use the concurrency level routine instead. The marking state should only set reset by CMTask[0] during the concurrent phase of the marking cycle; if an overflow occurs at any stage during the remark, the marking state will be reset after reference processing.
Reviewed-by: brutisso, jmasa

Summary: In CMTask::do_marking_step(), Skip offering termination and entering the first and second synchronization barriers if called from a serial context, i.e. the VM thread.
Reviewed-by: brutisso, tschatzl

Summary: Check for exception during SystemDictionary::resolve_instance_class_or_null() and clean up.
Reviewed-by: coleenp, acorn, hseigel, minqi
Contributed-by: ioi.lam@oracle.com

8009614: nsk/split_verifier/stress/ifelse/ifelse002_30 fails with 'assert((size & (granularity - 1)) == 0) failed: size not aligned to os::vm_allocation_granularity()
Summary: Align up vm allocation size to os defined granularity
Reviewed-by: dholmes, coleenp

Summary: Use the correct collector to retrieve accumulated gen1 trace time
Reviewed-by: johnc, jmasa

8005602: NPG: classunloading does not happen while CMS GC with -XX:+CMSClassUnloadingEnabled is used
Summary: Call purge() on CLDG after sweep(), reorder purge() call in GenCollectedHeap
Reviewed-by: jmasa, stefank

Summary: Store metadata on ClassFileParser instance to be cleaned up by destructor.  This enabled some refactoring of the enormous parseClassFile function.
Reviewed-by: jmasa, acorn

Summary: -Xshare:dump was creating a Symbol in C_heap.  There's an assert there that jdk jprt wasn't hitting because it was only done in product
Reviewed-by: dholmes, hseigel, iklam

Summary: Some zeroing was missed for bug 8003553, causing empty stack traces and Xcom crashes, add back zeroing to metablock
Reviewed-by: dholmes, rbackman

Reviewed-by: johnc

Summary: Print the concurrent phase start markers for CMS when PrintGCDetails is enabled, not only if both PrintGCDetails and PrintGCTimeStamps are.
Reviewed-by: mgerdin, jmasa

Summary: Take the initial heap size into account when checking the heap size for compressed oops
Reviewed-by: jmasa, kvn, hseigel, ctornqvi

Summary: The minimal JVM is printing a warning message for default settings when it should quitely ignore them.
Reviewed-by: coleenp, dholmes

Summary: Disable @Contended support for static fields
Reviewed-by: coleenp, kvn
Contributed-by: NAleksey Shipilev <aleksey.shipilev@oracle.com>

Summary: Don't scan pages outside the given range.
Reviewed-by: jwilhelm, jmasa

8009282: Assertion "assert(used_and_free == capacity_bytes) failed: Accounting is wrong" failed with -XX:+Verbose -XX:+TraceMetadataChunkAllocation
Summary: Assertion is only valid when at a safepoint, adjust accordingly.
Reviewed-by: stefank, jmasa, tamao

8009723: CMS logs "concurrent mode failure" twice when using (disabling) -XX:-UseCMSCompactAtFullCollection
Reviewed-by: jwilhelm, ehelin, brutisso

Summary: Zero metadata in constructors, not in allocation (and some in constructors)
Reviewed-by: jmasa, sspitsyn

Summary: Deprecate MaxGCMinorPauseMillis and emit a warning if set by users
Reviewed-by: brutisso, johnc
Contributed-by: Ntamao <tao.mao@oracle.com>

Summary: dump nodes and types in 8004640 case.
Reviewed-by: roland

Summary: ASSERT and other symbols used incorrectly with #if are supposed to be defined or not.
Reviewed-by: dholmes, mikael

8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
Summary: Changes to arguments.cpp for warnings vs. errors.  Changes for CDS arguments.
Reviewed-by: coleenp, cjplummer

Summary: 7121140 may not correctly break the Allocate -> MemBarStoreStore link
Reviewed-by: kvn

Summary: fix null pointer
Reviewed-by: kvn, coleenp

Summary: Update the task local finger to the start of the next object when marking aborts, in order to avoid the redundant scanning of all 0's when the marking task restarts, if otherwise updating to the next word. In addition, reuse the routine nextObject() in routine iterate().
Reviewed-by: johnc, ysr
Contributed-by: Ntamao <tao.mao@oracle.com>

7107135: Stack guard pages are no more protected after loading a shared library with executable stack
Summary: Detect the execstack attribute of the loaded library and attempt to fix the stack guard using Safepoint op.
Reviewed-by: dholmes, zgu
Contributed-by: ioi.lam@oracle.com

Reviewed-by: kvn, vlivanov

Summary: fix null pointer
Reviewed-by: kvn

Summary: Stop adding old regions to collection set when the remaining reclaimable bytes reaches, or goes below, G1HeapWastePercent. Changes were also reviewed by Vitaly Davidovich <vitalyd@gmail.com>.
Reviewed-by: brutisso

Reviewed-by: stefank, jmasa

Summary: Make deadlock detection a little more robust in the case of being unable to find the JavaThread associated with an object lock.
Reviewed-by: sla, acorn

Reviewed-by: kvn, vlivanov

Summary: Fix the build without precompiled headers by either including the missing ".inline.hpp" files into the appropriate files or by turning inline-functions declared in header files into ordinary functions in ".cpp" files.
Reviewed-by: coleenp, stefank, dholmes

Summary: Corrected formatted prints to have matching arguments, removed dead print_frame_layout function
Reviewed-by: sla, dholmes

Summary: GetAndSetP's MachNode should capture bottom type.
Reviewed-by: kvn

Summary: InitializeNode::can_capture_store() must check that the captured store doesn't overwrite a memory location that is loaded before the store.
Reviewed-by: kvn

Summary: Zero Symbol* for constant pool strings to indicate pseudo_strings (objects that aren't strings).  Clean up JVM_CONSTANT_Object and unused flags.
Reviewed-by: sspitsyn, jrose

Summary: SystemDictionary::find(...) should not create and register ClassLoaderData objects for class loaders.
Reviewed-by: coleenp, acorn
Contributed-by: NStefan Karlsson &lt;stefan.karlsson@oracle.com&gt;, Erik Helin <erik.helin@oracle.com>