hg: jdk8/awt/jdk: 7195179: ClassCastException for null values in JComboBox

[sergey . malenkov]

Changeset: abd068530590
Author:    malenkov
Date:      2013-08-27 12:53 +0400
URL:       http://hg.openjdk.java.net/jdk8/awt/jdk/rev/abd068530590

7195179: ClassCastException for null values in JComboBox
Reviewed-by: alexsch

! src/share/classes/javax/swing/plaf/basic/BasicComboBoxUI.java
+ test/javax/swing/JComboBox/7195179/Test7195179.java