[8u20] Request for approval for bulk integration of hs25.20-b10

[alejandro murillo]

Requesting approval to integrate hs25.20-b10 into jdk8u20-b10.

A webrev is available at:

http://cr.openjdk.java.net/~amurillo/8u20/hs25.20-b10-jdk8u20-b10.webrev/

Pre-integration testing is in progress; the integration will proceed
only after SQE has analyzed the results and approved.

The fixes in the proposed integration are below.  All have undergone
nightly testing and are already in a jdk8 repository.

8016302: Change type of the number of GC workers to unsigned int (2)
8026334: hs_err improvement: Print elapsed time in a humanly readable format
8032011: nsk/stress/jck60/jck60022 crashes in src\share\vm\runtime\synchronizer.cpp:239
8033696: "assert(thread != NULL) failed: just checking" due to Thread::current() and JNI pthread interaction
8036619: Shark: add LLVM 3.4 support
8038201: Clean up misleading usage of malloc() in init_system_properties_values()
8038461: Test gc/g1/TestStringDeduplicationMemoryUsage.java fails with unexpected memory usage
8038939: Some options related to RTM locking optimization works inconsistently
8039089: List verification enabled in product builds
8039146: Fix 64-bit store to int JNIHandleBlock::_top
8039291: new hotspot build - hs25.20-b10
8039392: Make jdk8u20 the default jprt release for hs25.20

-- 
Alejandro