hg: jdk10/client: 6714836: JRootPane.getMaximumSize() returns a width of 0

[ajit.ghaisas at oracle.com]

Changeset: 8d56044a9850
Author:    aghaisas
Date:      2017-10-12 10:40 +0530
URL:       http://hg.openjdk.java.net/jdk10/client/rev/8d56044a9850

6714836: JRootPane.getMaximumSize() returns a width of 0
Reviewed-by: psadhukhan, serb
Contributed-by: krishna.addepalli at oracle.com

! src/java.desktop/share/classes/javax/swing/JRootPane.java
+ test/jdk/javax/swing/JRootPane/MaximumSizeTest.java