This week's book giveaway is in the OCMJEA forum. We're giving away four copies of OCM Java EE 6 Enterprise Architect Exam Guide and have Paul Allen & Joseph Bambara on-line! See this thread for details.
The most important thing is to get the maximum amount of informaton from the exception. Your servlet engine is probably going to log the stack trace, so be sure to preserve the error log. Note that ServletException can be thrown with a "root cause" Throwable attached - if you are catching ServletException, use getRootCause() and print the stack trace of that Throwable. Bill