JDK-Info:
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java version "1.6.0-ea"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.6.0-ea-b56)
Java HotSpot(TM) Client VM (build 1.6.0-ea-b56, mixed mode)


Operating System:
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* SuSE Linux 9.3/GNOME


Steps to Reproduce:
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1) Install jre b56
2) Clean cache (\rm -rf ~/.java)
3) Launch a JNLP application
(./javaws http://java.sun.com/products/javawebstart/apps/mg.jnlp)
4) Launch cache viewer (./javaws -viewer)
5) Select the application and click on "Install Shortcut"
The Application creates shortcut on the desktop

Notice that the "Install Shortcut" icon is still enabled

Exepected Behavior:
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Once the desktop shortcut is created, the "Install Shortcut" button has to disabled on the cache viewer