Java Web Start : Track exit of client application

A main class is invoked through a JNLP file using Java Web Start from a c开发者_StackOverflowlient machine. I want to update server DB table based on successful launch and closing of the application in client machine.

The constraint is that I can't modify the application that gets launched(as it is a 3rd party GPL tool) Per my understanding of JWS, control goes out once application is launched. Is there any way to track such events(especially closure) using Java Web Start itself ?

I don't think so - as far as I know webstart doesn't track this these itself. You could write a simple wrapper application that is launched by webstart, which itself launches the 3rd party app.