Directory Tree in Applet

Hi I am new to Applet development, and have decided to make a system that allows users to upload multiple Images at once with ease. Similar to Facebooks one, but made by me.
I am trying to have a JTree on the left that displays all the drives/folders etc of the users system. I have used code I have used on applications but am getting
java.lang.ExceptionInInitializerErrorSo guessing there is a different way I need to do it.
Can anyone tell me how I can get the desired functionality please.
AberProgrammer

>
So once I have digitally signed it, it will magically just start working (or at least not throw Security Exceptions)??>No. You will note that I added (and trusted) to my original reply. You can sign it, and provide it in a web page for the end user to download and use, but it is up to the end user to click 'OK' when it comes time to trust the applet. If the user refuses that trust dialog, the applet will be sandboxed.
Here is [an example|http://pscode.org/test/docload/]. If the user trusts the code, they get a red document, otherwise the green document. It is mentioned in the SDNShare post [Defensive Loading of Trusted Applets|http://sdnshare.sun.com/view.jsp?id=2315].
Note also that one single '?' denotes a question, while two or more denotes a dweeb.

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