How to Close the Pop-up when there is error on Java Web Start

Question

Hi Guys,

I have a situation where I am launching a JNLP file from a pop-up window (JSP). If the client system has all required jars then JNLP launches successfully and calls Applet, Applet connects to POS Device and sends back either error or response message by calling a JavaScript method on pop-up window. Accordingly I display message on Parent JSP and close the pop-up window.

But, when client machine doesn't have required jar files. The Pop-up window launches JNLP and Java Web Start throws some Exceptions at initializing the Applet. In this situation I don't have any control over pop-up window as well as on Applet, therefore I couldn't close the pop-up window.

Please suggest how to handle this situation. If I get exception on Java Web Start at launching the JNLP then how can I close the pop up window.

Please share your ideas....

Thanks!