[8u40] approval request for batch of native memory tracking related backports: 8046598, 8044140, 8054938, 8054952, 8054368, 8055007, 8055061, 8054546 and 8055236

[Zhengyu Gu]

I would like to backport the list of fixes related to 8046598: Scalable 
Native memory tracking development.

These fixes are in JDK9 for about 2 weeks, we would like to backport 
them to 8u40.


8046598: Scalable Native memory tracking development
Bug: https://bugs.openjdk.java.net/browse/JDK-8046598
JDK9 changesets:
Open JDK: http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/91eeb8807a03
Backport Webrev:
Open JDK: http://cr.openjdk.java.net/~zgu/8046598_8u/webrev.00/ 
<http://cr.openjdk.java.net/%7Ezgu/8046598_8u/webrev.00/>
[1]http://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2014-August/012394.html


8044140: Create NMT (Native Memory Tracking) tests for NMT2
Bug: https://bugs.openjdk.java.net/browse/JDK-8044140
JDK9 changesets:
Open JDK: http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/0c7f758c15eb

8054938: [TESTBUG] Wrong WhiteBox.java was pushed by JDK-8044140
Bug: https://bugs.openjdk.java.net/browse/JDK-8054938
JDK9 changeset: 
http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/b33d97dd6fdc

8054952: [TESTBUG] Add missing NMT2 tests
Bug: https://bugs.openjdk.java.net/browse/JDK-8054952
JDK9 changeset: 
http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/d3fd2d45ce56

8054368: nsk/jdi/VirtualMachine/exit/exit002 crash with detail tracking 
on (NMT2)
Bug: https://bugs.openjdk.java.net/browse/JDK-8054368
JDK9 changeset: 
http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/72030160367a

8055007: NMT2: emptyStack missing in minimal build
Bug: https://bugs.openjdk.java.net/browse/JDK-8055007
JDK9 changeset: 
http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/c346a7739aee

8055061: assert at share/vm/services/virtualMemoryTracker.cpp:332 Error: 
ShouldNotReachHere() when running NMT tests
Bug: https://bugs.openjdk.java.net/browse/JDK-8055061
JDK9 changeset: 
http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/c041b65beeed

8054546: NMT2 leaks memory
Bug: https://bugs.openjdk.java.net/browse/JDK-8054546
JDK9 changeset: 
http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/91f25b8a47af

8055236: Deadlock during NMT2 shutdown on Windows
Bug: https://bugs.openjdk.java.net/browse/JDK-8055236
JDK9 changeset: 
http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/91f25b8a47af

Thanks,

-Zhengyu