This CR is to follow up on the fix failure of CR 7037958 (Regression : Control panel browse button CCE since JDK7-b136)

The issue can be still reproducible using b141 PIT bundle 
http://rehudson.sfbay.sun.com/hudsonws/deploypit/bundles/
b255-2011-04-28_70


- Tested OS: Solaris sparc 10
- PIT build: b141 deployment PIT bundle

*** Steps to reproduce:
(Please refer to the original CR 7037958)

ROBLEM DESCRIPTION
-------------------
Problem 1:
It is not possible to access the Browse button in the ControlPanel using the Keyboard.

Problem 2:
When you access Browse button using the mouse, an ClassCastException is thrown.

REPRODUCTION INSTRUCTIONS
-------------------------
1. Download the latest Java7 build & set the path.
2. Launch the Java control panel via bin/ControlPanel
3. Select the "Advanced" tab, then expand "Command to launch Default
   browser"
4. Try move the focus to the "Browse" Button with the Keyboard and
   activate it.

Expected result:
   Browse button should be accessible with keyboard and it should not
   throw an Exception when it is clicked.

Observed result:
   Cannot reach Browse button with keyboard. When clicking the button
   with the mouse a ClassCastException is thrown