[8u60] Request for approval for bulk integration of hs25.60-b18

[Alejandro E Murillo]

Requesting approval to integrate hs25.60-b18 into jdk8u60-b18.

A webrev is available at:

http://cr.openjdk.java.net/~amurillo/8u60/hs25.60-b18-jdk8u60-b18.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 jdk9 repository.

8031686: G1: assert(_hrs.max_length() == _expansion_regions) failed
8046668: Excessive checked JNI warnings from Java startup
8060036: C2: CmpU nodes can end up with wrong type information
8077620: [TESTBUG] Some of the hotspot tests require at least compact profile 3
8080156: Integer.toString(int value) sometimes throws NPE
8080804: new hotspot build - hs25.60-b18

-- 
Alejandro