Hey, You can implement the interface ExceptionHandler, and use it in your own implementation of RequestFactoryServlet
public class MyExceptionHandler implements ExceptionHandler { @Override public ServerFailure createServerFailure( final Throwable throwable ) { // Create your ServerFailure from the Throwable ... } } public class MyRequestFactoryServlet extends RequestFactoryServlet { public CommonRequestFactoryServlet() { super( new MyExceptionHandler(), ... ); } } Don't forget to declare MyRequestFactoryServlet in the web.xml -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.