hg: amber/amber/jdk: Automatic merge with default

[maurizio.cimadamore at oracle.com]

Changeset: 973cbb6e9da1
Author:    langtools
Date:      2017-04-25 08:55 +0200
URL:       http://hg.openjdk.java.net/amber/amber/jdk/rev/973cbb6e9da1

Automatic merge with default