I use : <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> in the login.jsp page, in the portal-server.war (see \deploy\jboss-portal.sar\portal-server.war) added the library in the WEB-INF/lib folder (\deploy\jboss-portal.sar\portal-server.war\WEB-INF\lib) in war for portlet, should work the same. if the tag is not recognized at runtime, may be get the tld file, and add it in the WEB-INF. for diagnostic purpose... see what happen... I look at the way it is done with taglib of portal in layout jsp pages, or admin portal jsp pages... and make the same for the jstl lib hope it helps... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4032482#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...