Unfortunately there isn't, as far as I know. You could include limited Java functionality in the GUI of the web page by using JSP with the Tomcat webserver but that wouldn't allow for the creation of JPanels and JFrames and whatnot. As long as the main class of the Java program extends the Applet superclass then there shouldn't be a lot more to change though. Perhaps if you had more detail on what issues they're having somebody here could help?