hg: jdk9/sandbox/jdk: 8155215: java.lang.String concatenation spec is unnecessarily strong

[chris.hegarty at oracle.com]

Changeset: daefa1109859
Author:    shade
Date:      2016-04-29 23:15 +0300
URL:       http://hg.openjdk.java.net/jdk9/sandbox/jdk/rev/daefa1109859

8155215: java.lang.String concatenation spec is unnecessarily strong
Reviewed-by: abuckley, sherman, chegar

! src/java.base/share/classes/java/lang/String.java