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.