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.
I am debugging a problem that I think may have been thrown by a JSP. Our error handler retrieves the throwable from javax.servlet.error.exception_type, but sometimes, like in this case, it's null. What causes this?