Tobago: ClassCastException rendering navigator

[Stefan Hedtfeld]

Hi, I built a navigation like the one in the tobago examples. But I get the following error: 19:53:21,601 INFO  [NavigationController] action = '' 19:53:21,608 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception java.lang.ClassCastException: org.apache.myfaces.tobago.component.UICommand         at org.apache.myfaces.taglib.core.VerbatimTag.doAfterBody(VerbatimTag.java:76)         at org.apache.jsp.fuelmaster.navigator_jsp._jspx_meth_f_verbatim_1(org.apache.jsp.fuelmaster.navigator_jsp:372)         at org.apache.jsp.fuelmaster.navigator_jsp._jspService(org.apache.jsp.fuelmaster.navigator_jsp:136)         at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)         at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)         at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)         at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)         at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)         at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)         at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)         at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:574)         at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:499)         at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:966)         at org.apache.jsp.tag.web.layout.fuelmaster_tag._jspx_meth_tc_cell_1(org.apache.jsp.tag.web.layout.fuelmaster_tag:335)         at org.apache.jsp.tag.web.layout.fuelmaster_tag._jspx_meth_tc_page_0(org.apache.jsp.tag.web.layout.fuelmaster_tag:197)         at org.apache.jsp.tag.web.layout.fuelmaster_tag._jspx_meth_f_view_0(org.apache.jsp.tag.web.layout.fuelmaster_tag:123)         at org.apache.jsp.tag.web.layout.fuelmaster_tag.doTag(org.apache.jsp.tag.web.layout.fuelmaster_tag:78)         at org.apache.jsp.intro_jsp._jspx_meth_layout_fuelmaster_0(org.apache.jsp.intro_jsp:84)         at org.apache.jsp.intro_jsp._jspService(org.apache.jsp.intro_jsp:62)         at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)         at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)         at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)         at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)         at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)         at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)         at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)         at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)         at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)         at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)         at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:415)         at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:234)         at org.apache.myfaces.tobago.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:117)         at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:352)         at javax.faces.webapp.FacesServlet.service(FacesServlet.java:107)         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)         at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)         at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)         at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)         at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:54)         at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:174)         at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)         at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)         at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)         at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)         at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)         at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)         at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663)         at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)         at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)         at java.lang.Thread.run(Thread.java:595) My navigator.jsp contains the following: <%@ page import="javax.faces.context.FacesContext"%> <%@ taglib uri="http://myfaces.apache.org/tobago/component" prefix="tc" %> <%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> <f:subview id="navigator" >   <tc:panel>     <f:facet name="layout">       <tc:gridLayout columns="10px;1*"          rows="fixed;fixed;fixed;1*" />     </f:facet>     <%       // FIXME: this hotfix ensures that, "navigationController" is available       // for JSTL-Tags       FacesContext facesContext = FacesContext.getCurrentInstance();       facesContext.getApplication().getVariableResolver()           .resolveVariable(facesContext, "navigationController");     %>         <%-- row 0 --%>     <f:verbatim>       <c:if test='${navigationController.currentPage == "intro"}'>         <tc:image value="image/navigate-pointer.gif" width="16px" height="16px" />       </c:if>     </f:verbatim>     <tc:link action="" immediate="true"         actionListener="#{navigationController.navigate}" label="#{mainBundle.intro}" />         <%-- row 1 --%>     <f:verbatim>       <c:if test='${navigationController.currentPage == "edit/editFuelling"}'>         <tc:image value="image/navigate-pointer.gif" width="16px" height="16px" />       </c:if>     </f:verbatim>     <tc:link action="" immediate="true"         actionListener="#{navigationController.navigate}" label="#{mainBundle.intro}" />         <%-- row (n - 1) --%>     <tc:cell spanX="2">       <f:verbatim>         <hr width="80%"/>       </f:verbatim>     </tc:cell>         <%-- row n --%>     <tc:cell spanX="2"/>   </tc:panel> </f:subview> I'm running on JBoss 4.0.4RC1 with the bundled tomcat on SuSE Linux 10, amd64. The generated navigator_jsp.java class contains the following method: private boolean _jspx_meth_f_verbatim_1(javax.servlet.jsp.tagext.JspTag _jspx_th_tc_panel_0, PageContext _jspx_page_context) throws Throwable { PageContext pageContext = _jspx_page_context; JspWriter out = _jspx_page_context.getOut(); // f:verbatim org.apache.myfaces.taglib.core.VerbatimTag _jspx_th_f_verbatim_1 = (org.apache.myfaces.taglib.core.VerbatimTag) _jspx_tagPool_f_verbatim.get(org.apache.myfaces.taglib.core.VerbatimTag.class); _jspx_th_f_verbatim_1.setPageContext(_jspx_page_context); _jspx_th_f_verbatim_1.setParent((javax.servlet.jsp.tagext.Tag) _jspx_th_tc_panel_0); int _jspx_eval_f_verbatim_1 = _jspx_th_f_verbatim_1.doStartTag(); if (_jspx_eval_f_verbatim_1 != javax.servlet.jsp.tagext.Tag.SKIP_BODY) { if (_jspx_eval_f_verbatim_1 != javax.servlet.jsp.tagext.Tag.EVAL_BODY_INCLUDE) { out = _jspx_page_context.pushBody(); _jspx_th_f_verbatim_1.setBodyContent((javax.servlet.jsp.tagext.BodyContent) out); _jspx_th_f_verbatim_1.doInitBody(); } do { out.write("\n"); out.write(" "); if (_jspx_meth_c_if_1(_jspx_th_f_verbatim_1, _jspx_page_context)) return true; out.write("\n"); out.write(" "); int evalDoAfterBody = _jspx_th_f_verbatim_1.doAfterBody(); if (evalDoAfterBody != javax.servlet.jsp.tagext.BodyTag.EVAL_BODY_AGAIN) break; } while (true); if (_jspx_eval_f_verbatim_1 != javax.servlet.jsp.tagext.Tag.EVAL_BODY_INCLUDE) out = _jspx_page_context.popBody(); } if (_jspx_th_f_verbatim_1.doEndTag() == javax.servlet.jsp.tagext.Tag.SKIP_PAGE) { _jspx_tagPool_f_verbatim.reuse(_jspx_th_f_verbatim_1); return true; } _jspx_tagPool_f_verbatim.reuse(_jspx_th_f_verbatim_1); return false; } line 372 beeing int evalDoAfterBody = _jspx_th_f_verbatim_1.doAfterBody(); Is this a tobago issue, a myfaces issue or a "beginners" issue? Regards, Stefan.