diff -r 2cb1b29556f2 -r d65aab67ee8a jdk/src/share/classes/javax/swing/plaf/basic/BasicOptionPaneUI.java
--- a/jdk/src/share/classes/javax/swing/plaf/basic/BasicOptionPaneUI.java	Fri Feb 03 18:01:24 2012 +0400
+++ b/jdk/src/share/classes/javax/swing/plaf/basic/BasicOptionPaneUI.java	Wed Feb 08 16:15:12 2012 +0400
@@ -1236,6 +1236,7 @@
                 int       index = list.locationToIndex(e.getPoint());
 
                 optionPane.setInputValue(list.getModel().getElementAt(index));
+                optionPane.setValue(JOptionPane.OK_OPTION);
             }
         }