Hi, I was studying my web app and I have got the problem. It is in the class DefinitionTag that extends SimpleTagSupport. In the method, | public void doTag() { | try { | getJspBody() | .invoke(null); | | Definition definition = new Definition(); | PageContext context = (PageContext) getJspContext(); | setScreen(screenId); | ArrayList params = (ArrayList) screens.get(this.screenId); | Iterator ir = null; | | if (params != null) { | ir = params.iterator(); | | int cont = 0; | while (ir.hasNext()){ | definition.setParam((Parameter) ir.next()); | cont ++; | } | Debug.println("DefinitionTag: params defined: " + cont); | | // put the definition in the page context | context.setAttribute(definitionName, definition, | PageContext.APPLICATION_SCOPE); | } else { | Debug.println("DefinitionTag: params are not defined."); | } | } catch (Exception ex) { | ex.printStackTrace(); | } | } | the line ArrayList params = (ArrayList) screens.get(this.screenId); returns null, so the rest of the code | if (params != null) { | ir = params.iterator(); | | int cont = 0; | while (ir.hasNext()){ | definition.setParam((Parameter) ir.next()); | cont ++; | } | Debug.println("DefinitionTag: params defined: " + cont); | | // put the definition in the page context | context.setAttribute(definitionName, definition, | PageContext.APPLICATION_SCOPE); | } else { | Debug.println("DefinitionTag: params are not defined."); | } | returns, on the console, the message: "DefinitionTag: params are not defined." And it is because the value of this.screenId is, "${requestScope['javax.servlet.forward.servlet_path']}" that belong to screendefinitions.jspf as follow, | <%@ taglib uri="SimpleTagLibrary" prefix="tt" %> | <tt:definition name="bank" screen="${requestScope['javax.servlet.forward.servlet_path']}"> | <tt:screen screenId="/main"> | <tt:parameter name="title" value="Duke's Bank" direct="true"/> | <tt:parameter name="banner" value="/template/banner.jsp" direct="false"/> | <tt:parameter name="links" value="/template/links.jsp" direct="false"/> | <tt:parameter name="body" value="/main.jsp" direct="false"/> | </tt:screen> | | <tt:screen screenId="/transferAck"> | <tt:parameter name="title" direct="true"> | <jsp:attribute name="value" > | <fmt:message key="TitleTransferSucceeded"/> | </jsp:attribute> | </tt:parameter> | <tt:parameter name="banner" value="/template/banner.jsp" direct="false"/> | <tt:parameter name="links" value="/template/links.jsp" direct="false"/> | <tt:parameter name="body" value="/transferAck.jsp" direct="false"/> | </tt:screen> | | <tt:screen screenId="/transferFunds"> | <tt:parameter name="title" direct="true"> | <jsp:attribute name="value" > | <fmt:message key="TitleTransferFunds"/> | </jsp:attribute> | </tt:parameter> | <tt:parameter name="banner" value="/template/banner.jsp" direct="false"/> | <tt:parameter name="links" value="/template/links.jsp" direct="false"/> | <tt:parameter name="body" value="/transferFunds.jsp" direct="false"/> | </tt:screen> | | <tt:screen screenId="/atmAck"> | <tt:parameter name="title" direct="true"> | <jsp:attribute name="value" > | <fmt:message key="TitleWDSucceeded"/> | </jsp:attribute> | </tt:parameter> | <tt:parameter name="banner" value="/template/banner.jsp" direct="false"/> | <tt:parameter name="links" value="/template/links.jsp" direct="false"/> | <tt:parameter name="body" value="/atmAck.jsp" direct="false"/> | </tt:screen> | | <tt:screen screenId="/atm"> | <tt:parameter name="title" direct="true"> | <jsp:attribute name="value" > | <fmt:message key="TitleWD"/> | </jsp:attribute> | </tt:parameter> | <tt:parameter name="banner" value="/template/banner.jsp" direct="false"/> | <tt:parameter name="links" value="/template/links.jsp" direct="false"/> | <tt:parameter name="body" value="/atm.jsp" direct="false"/> | </tt:screen> | | <tt:screen screenId="/accountHist"> | <tt:parameter name="title" direct="true"> | <jsp:attribute name="value" > | <fmt:message key="TitleAccountHistory"/> | </jsp:attribute> | </tt:parameter> | <tt:parameter name="banner" value="/template/banner.jsp" direct="false"/> | <tt:parameter name="links" value="/template/links.jsp" direct="false"/> | <tt:parameter name="body" value="/accountHist.jsp" direct="false"/> | </tt:screen> | | <tt:screen screenId="/accountList"> | <tt:parameter name="title" direct="true"> | <jsp:attribute name="value" > | <fmt:message key="TitleAccountList"/> | </jsp:attribute> | </tt:parameter> | <tt:parameter name="banner" value="/template/banner.jsp" direct="false"/> | <tt:parameter name="links" value="/template/links.jsp" direct="false"/> | <tt:parameter name="body" value="/accountList.jsp" direct="false"/> | </tt:screen> | | <tt:screen screenId="/logoff"> | <tt:parameter name="title" direct="true"> | <jsp:attribute name="value" > | <fmt:message key="TitleLogoff" /> | </jsp:attribute> | </tt:parameter> | <tt:parameter name="banner" value="/template/banner.jsp" direct="false"/> | <tt:parameter name="links" value="/template/nolinks.jsp" direct="false"/> | <tt:parameter name="body" value="/logoff.jsp" direct="false"/> | </tt:screen> | </tt:definition> | I think the value might to be "/main", "/transferFunds", etc... and this is my problem. Will you help me? Merry Christmas, Jose Alvarez de Lara(Oggie Svennson) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4198510#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...