I try to remember to use <%– and –%> instead of <!– and –> for comments in server-side web pages, to avoid having implementation details (for security reasons that is) in the output HTML and to keep the download size smaller / have the pages load faster. What came to me though the other day […]

was getting an error like the following at your JavaEE Servlet (Portlets are also Servlets under the hood btw): javax.servlet.ServletException: javax.portlet.PortletException: java.lang.Throwable: java.lang.IncompatibleClassChangeError: : incorrect call to interface method   at first I thought the issue was with:   <bean:message ...