hg: jdk7u/jdk7u-dev/jdk: 7071826: Avoid benign race condition in initialization of UUID

[mike.duigou at oracle.com]

Changeset: 6f9e7feeac32
Author:    mduigou
Date:      2012-05-11 11:31 -0700
URL:       http://hg.openjdk.java.net/jdk7u/jdk7u-dev/jdk/rev/6f9e7feeac32

7071826: Avoid benign race condition in initialization of UUID
Summary: Avoids mostly benign but sometimes expensive race condition on initialization of UUID.numberGenerator which is used by UUID.randomUUID()
Reviewed-by: alanb, chegar

! src/share/classes/java/util/UUID.java
! test/java/util/UUID/UUIDTest.java