After I installed netbeans5.5 and netbeans5.5-platform in my Ubuntu machine. I started the netbeans from menu but only shown a blank window.
I found the solution for this issue from ubuntu forum article .
It's due to the Swing is not compatible with Beryl. You need to set your desktop visual effect to "None".
You do that from the Desktop menu "System" >> "Preferences" >> "Appearence" >> "Visual Effects" tab , and select "None" .
Other choices will activate Beryl, so Netbeans can not display anything inside the window.
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