hg: jdk9/sandbox/jdk: 8151431: DateFormatSymbols triggers this.clone() in the constructor

[chris.hegarty at oracle.com]

Changeset: 26b82c87d8c7
Author:    okutsu
Date:      2016-04-07 17:52 +0900
URL:       http://hg.openjdk.java.net/jdk9/sandbox/jdk/rev/26b82c87d8c7

8151431: DateFormatSymbols triggers this.clone() in the constructor
Reviewed-by: naoto, peytoia

! src/java.base/share/classes/java/text/DateFormatSymbols.java
+ test/java/text/Format/DateFormat/DateFormatSymbolsCloneTest.java