Bug Description:
Null pointer Exception when trying to uninstall jnlp application using
command line option

PIT build Version :
java version "1.6.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.6.0-b99)
Java HotSpot(TM) Client VM (build 20050408114918.et151817.baseline, mixed mode,
sharing)

Build Location : /net/sqesvr-nfs.sfbay/global/nfs/deployment5/pit_builds/windows-i586/jre160_pit.exe

Steps to reproduce:
1.Install jre1.6.0 Pit build 34
2.Import notepad application from following jnlp location
http://java.sun.com/products/javawebstart/apps/notepad.jnlp
3.Launch CacheViewer (javaws -viewer)
4.The application notepad will be listed
5.Close the CacheViewer
6.In command prompt type following line
javaws -uninstall http://java.sun.com/products/javawebstart/apps/notepad.jnlp

Error dialog will popup titled "Java Web Start - Unexpected Error"

I have attached the details message of error dialog.
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