Request for approval for CR 7051516 - ThreadLocalRandom seed is never initialized so all instances generate the same sequence

[Chris Hegarty]

This is a request for approval to backport the fix for 7051516 to 
jdk7u-dev/jdk:

    7051516 - ThreadLocalRandom seed is never initialized so all 
instances generate the same sequence
    http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7051516
Changeset in jdk8 (and see [1] for the discussion):
     http://hg.openjdk.java.net/jdk8/tl/jdk/rev/411d02c13385

The patch for jdk7u is the same as that in jdk8.

Thanks,
Chris