hg: jdk9/client/jdk: 8134116: Add more comprehensive fix and regression test for JDK-8133897

[peter.brunet at oracle.com]

Changeset: 13a48e944151
Author:    ptbrunet
Date:      2015-11-12 12:27 -0600
URL:       http://hg.openjdk.java.net/jdk9/client/jdk/rev/13a48e944151

8134116: Add more comprehensive fix and regression test for JDK-8133897
Summary: Use getTitleAt instead of Page.title field; add regression test
Reviewed-by: alexsch, serb
Contributed-by: peter.brunet at oracle.com

! src/java.desktop/share/classes/javax/swing/JTabbedPane.java
+ test/javax/swing/JTabbedPane/8134116/Bug8134116.java