8062957: Heap is not shrunk when deallocating under memory pressure
Summary: Added explicit -XX:-ExplicitGCInvokesConcurrent to invocations
Reviewed-by: brutisso, tschatzl

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

Reviewed-by: coleenp, sspitsyn, jfranck

Summary: Implemented the interface in sun.misc.URLClassPath and corresponding JVM_XXX APIs
Reviewed-by: mchung, acorn, jiangli, dholmes

8061983: [TESTBUG] compiler/whitebox/MakeMethodNotCompilableTest.java fails with "must not be in queue"
Summary: Added a method checkNotCompiled(boolean isOsr) to either check if the method is OSR compiled or to check if it is non-OSR compiled.
Reviewed-by: kvn

Summary: Call warmup code from OSR triggering method to make sure no non-OSR compilation is triggered in the loop.
Reviewed-by: kvn

Summary: Move the call to 'waitAndDeoptimize' from the warmup methods to the osr triggering methods to make sure that no non-osr compilation is in the queue after warmup.
Reviewed-by: kvn

Summary: Added code to 'warm up' the methods before triggering OSR compilation by executing them a limited number of times. Like this, the profile information marks the loop exit as taken and we don't add an uncommon trap.
Reviewed-by: kvn, dlong, iignatyev

8052172: Evacuation failure handling in G1 does not evacuate all objects if -XX:-G1DeferredRSUpdate is set
Summary: Remove -XX:-G1DeferredRSUpdate functionality as it is racy. During evacuation failure handling, threads where evacuation failure handling occurred may try to add remembered sets to regions which remembered sets are currently being scanned. The iterator to handle the remembered set scan does not support addition of entries during scan and so may skip valid references.
Reviewed-by: iveresov, brutisso, mgerdin

Summary: Ergonomics updates flags for number of GC threads
Reviewed-by: tschatzl, jwilhelm
Contributed-by: sangheon.kim@oracle.com

Summary: ClassLoader for array klass set to null and not the class loader of the component type.
Reviewed-by: dcubed, ctornqvi

8058818: Allocation of more then 1G of memory using Unsafe.allocateMemory is still causing a fatal error on 32bit platforms
Summary: The assert was firing for NMT_Off and minimal too even though the size isn't used.
Reviewed-by: gtriantafill, dholmes

Reviewed-by: lfoltan, hseigel

8058481: Test gc/class_unloading/TestCMSClassUnloadingDisabledHWM.java was removed, but TEST.groups still refers to it
Reviewed-by: tschatzl, fzhinkin, mgerdin

8058475: TestCMSClassUnloadingEnabledHWM.java fails with '.*CMS Initial Mark.*' missing from stdout/stderr
Reviewed-by: mgerdin, tschatzl, brutisso

Reviewed-by: kvn, iveresov, iignatyev
Contributed-by: NBoris Molodenkov <boris.molodenkov@oracle.com>

Summary: Added a test case the UnsafeRawOp intrinsics
Reviewed-by: kvn

8058936: hotspot/test/Makefile should use jtreg script from $JT_HOME/bin/jreg (instead of $JT_HOME/win32/bin/jtreg)
Reviewed-by: dholmes, stefank

Summary: Copied CDS tests from jdk-9 to jdk8u40
Reviewed-by: ccheung, dholmes

Summary: Disable the test until related Java launcher change reaches promotion build
Reviewed-by: ctornqvi, gtriantafill

Summary: Remove check that causes the VerifyError
Reviewed-by: dholmes, coleenp, acorn

8055765: Misplaced @key stress prevents MallocSiteHashOverflow.java and MallocStressTest.java tests from running
Reviewed-by: ctornqvi, zgu, hseigel

Reviewed-by: ctornqvi, sla

Reviewed-by: ctornqvi, zgu

8055052: [TESTBUG] runtime/NMT/JcmdDetailDiff.java fails on Windows when there are no debug symbols available
Reviewed-by: ctornqvi, hseigel

Summary: disable failing test
Reviewed-by: ctornqvi, zgu

Summary: enable tests for NMT2
Reviewed-by: ctornqvi, zgu

8055061: assert at share/vm/services/virtualMemoryTracker.cpp:332 Error: ShouldNotReachHere() when running NMT tests
Summary: Handled CDS mapping region and added test for the scenario
Reviewed-by: coleenp, ctornqvi

Summary: The new NMT2 tests got lost on the way into jdk9 yesterday, this change adds them.
Reviewed-by: coleenp, zgu, ctornqvi

Summary: Enable shrinking within the heap by removing some code added for JDK-8054818. Enable the test case that checks that again too.
Reviewed-by: jwilhelm, jmasa

8037925: CMM Testing: an allocated humongous object at the end of the heap should not prevents shrinking the heap
Summary: New test added.
Reviewed-by: ehelin, tschatzl, jwilhelm
Contributed-by: andrey.x.zakharov@oracle.com

8055657: Test compiler/classUnloading/methodUnloading/TestMethodUnloading.java does not work with non-default GC
Summary: Remove the '-XX:+UseParallelGC' parameter from the test because it is conflicting with other GC settings.
Reviewed-by: kvn

Summary: Add missing unit test.
Reviewed-by: tschatzl
Contributed-by: NLeonid Mesnik <leonid.mesnik@oracle.com>

Summary: Because anonymous classes are not in the system dictionary, we have to set 'unloading_occurred' based on 'CLDG::do_unloading()'. Added jtreg test.
Reviewed-by: kvn, coleenp

Summary: Require to specify UnlockExperimentalVMOptions flag together with UseRTMLocking flag on un-patched systems where CPUID allows it but is unsupported otherwise.
Reviewed-by: iveresov, fzhinkin

Summary: Cleaned up CDS to be more configurable, maintainable and extensible
Reviewed-by: dholmes, coleenp, acorn, mchung

Summary: Extend the WhiteBox API to provide information about the size and age of objects. Further add a mechanism to trigger a young GC.
Reviewed-by: tschatzl, sjohanss
Contributed-by: NLeonid Mesnik <leonid.mesnik@oracle.com>

Summary: Reserved WhiteBox.java pushed by JDK-8044140
Reviewed-by: ccheung, hseigel

Summary: Create new/modify existing tests for NMT2, which is an internal redesign to address scalability issues in the first implementation.
Reviewed-by: ctornqvi, zgu
Contributed-by: NGeorge Triantafillou <george.triantafillou@oracle.com>

Summary: Enhance scalability of native memory tracking
Reviewed-by: coleenp, ctornqvi, gtriantafill