java.lang.ClassCastException: com.sun.faces.facelets.compiler.UIInstructions kann nicht auf org.primefaces.model.menu.MenuElement gegossen werden

Question

Heute morgen habe ich in mein Büro kam und das erste, was ich sah: meine Firma Website abgestürzt. Wegen mir denke ich.

Jetzt habe ich versucht für anderthalb Stunden, das zu beheben, aber ich habe nichts gefunden und jeder verliert seine Meinung, weil die Website nicht funktioniert und ich kann es nicht reparieren (ich bin alleine. Die Schöpfer der Website sind weg oder in den Ferien). Also ich hoffe du kannst mir helfen!

Ich bekomme diese Ausnahme, wenn ich das Dashboard.xhtml meiner Website aufrufen.

java.lang.ClassCastException: com.sun.faces.facelets.compiler.UIInstructions cannot be cast to org.primefaces.model.menu.MenuElement 

Mein Problem ist: in der ganzen Ausnahme, nirgends ist eine Datei, die ich von mir selbst gemacht. Also ich weiß wirklich nicht wo genau mein Fehler ist.

Können Sie mir helfen?

Hier sind einige zusätzliche Informationen:

Ganze Ausnahme:

SEVERE: Error Rendering View[/WEB-INF/flows/dashboard/dashboard.xhtml] 
java.lang.ClassCastException: com.sun.faces.facelets.compiler.UIInstructions cannot be cast to org.primefaces.model.menu.MenuElement 
at org.primefaces.component.tieredmenu.TieredMenuRenderer.encodeElements(TieredMenuRenderer.java:97) 
at org.primefaces.component.tieredmenu.TieredMenuRenderer.encodeSubmenu(TieredMenuRenderer.java:162) 
at org.primefaces.component.tieredmenu.TieredMenuRenderer.encodeElements(TieredMenuRenderer.java:119) 
at org.primefaces.component.tieredmenu.TieredMenuRenderer.encodeMenu(TieredMenuRenderer.java:78) 
at org.primefaces.component.menubar.MenubarRenderer.encodeMarkup(MenubarRenderer.java:49) 
at org.primefaces.component.menu.BaseMenuRenderer.encodeEnd(BaseMenuRenderer.java:105) 
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875) 
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1786) 
at javax.faces.render.Renderer.encodeChildren(Renderer.java:168) 
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845) 
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1779) 
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1782) 
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1782) 
at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:402) 
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:125) 
at org.springframework.faces.webflow.FlowViewHandler.renderView(FlowViewHandler.java:99) 
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121) 
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) 
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) 
at org.springframework.faces.webflow.FlowLifecycle.render(FlowLifecycle.java:80) 
at org.springframework.faces.webflow.JsfView.render(JsfView.java:89) 
at org.springframework.webflow.engine.ViewState.render(ViewState.java:296) 
at org.springframework.webflow.engine.ViewState.refresh(ViewState.java:243) 
at org.springframework.webflow.engine.ViewState.resume(ViewState.java:221) 
at org.springframework.webflow.engine.Flow.resume(Flow.java:545) 
at org.springframework.webflow.engine.impl.FlowExecutionImpl.resume(FlowExecutionImpl.java:258) 
at org.springframework.webflow.executor.FlowExecutorImpl.resumeExecution(FlowExecutorImpl.java:169) 
at org.springframework.webflow.mvc.servlet.FlowHandlerAdapter.handle(FlowHandlerAdapter.java:183) 
at org.springframework.faces.webflow.JsfFlowHandlerAdapter.handle(JsfFlowHandlerAdapter.java:48) 
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923) 
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852) 
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882) 
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:311) 
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116) 
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323) 
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323) 
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:101) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323) 
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323) 
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323) 
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323) 
at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323) 
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:182) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323) 
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323) 
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323) 
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:173) 
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) 
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) 
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) 
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) 
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) 
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99) 
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929) 
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) 
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002) 
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585) 
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
at java.lang.Thread.run(Thread.java:722) 

ganze dashborad Datei:

<!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<ui:composition xmlns="http://www.w3.org/1999/xhtml" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:h="http://java.sun.com/jsf/html" xmlns:p="http://primefaces.org/ui" 
    xmlns:f="http://java.sun.com/jsf/core" template="../../layouts/100.xhtml"> 

    <ui:define name="heading"> 
     <h:outputText value="Dashboard" /> 
    </ui:define> 

    <ui:define name="caption"> 
     <p>List of all your configurations and enabled containers.</p> 
    </ui:define> 

    <ui:define name="main"> 
     <div id="main"> 

      <div class="page_margins"> 
       <div class="page"> 
        <h:form id="form"> 
         <p:panel header="Meine Projekte" rendered="#{personManagementBean.loggedIn}"> 

          <p:growl id="msgs" showDetail="true" /> 

          <p:dataTable id="ownerProjects" var="p" value="#{projectManagementBean.ownerProjects}" tableStyle="width:100%" emptyMessage="Keine Projekte vorhanden"> 

           <p:column headerText="Projektk&uuml;rzel" style="width:100px"> 
            <h:outputText value="#{p.projectId}" /> 
           </p:column> 

           <p:column headerText="Dom&auml;ne" style="width:80px"> 
            <h:outputText value="#{p.domain}" /> 
           </p:column> 
           <p:column headerText="Sub-Dom&auml;ne" style="width:80px"> 
            <h:outputText value="#{p.subDomain}" /> 
           </p:column> 

           <p:column headerText="Beschreibung"> 
            <h:outputText value="#{p.description}" /> 
           </p:column> 

           <p:column style="width:40px"> 
            <p:panelGrid columns="2" styleClass="no-column-borders" cellpadding="2"> 
             <p:commandButton id="selectButton" update=":form:display" oncomplete="projectDialog.show()" icon="ui-icon-search" title="Anzeigen" 
              actionListener="#{projectManagementBean.loadProject(p.projectId)}"> 
             </p:commandButton> 
             <p:commandButton id="editButton" update=":form:display" icon="ui-icon-pencil" title="Anpassen" oncomplete="editProjectDialog.show()" 
              actionListener="#{projectManagementBean.loadProject(p.projectId)}"> 
             </p:commandButton> 
            </p:panelGrid> 
           </p:column> 
          </p:dataTable> 

         </p:panel> 

         <p:panel header="Meine Entwicklungsprojekte" rendered="#{personManagementBean.loggedIn}" style="margin-top:10px"> 

          <p:dataTable id="developperProjects" var="p" value="#{projectManagementBean.developperProjects}" rendered="#{personManagementBean.loggedIn}" tableStyle="width:100%" 
           emptyMessage="Keine Projekte vorhanden"> 

           <p:column headerText="Projektk&uuml;rzel" style="width:100px"> 
            <h:outputText value="#{p.projectId}" /> 
           </p:column> 

           <p:column headerText="Dom&auml;ne" style="width:80px"> 
            <h:outputText value="#{p.domain}" /> 
           </p:column> 
           <p:column headerText="Sub-Dom&auml;ne" style="width:80px"> 
            <h:outputText value="#{p.subDomain}" /> 
           </p:column> 

           <p:column headerText="Beschreibung"> 
            <h:outputText value="#{p.description}" /> 
           </p:column> 

           <p:column style="width:40px"> 
            <p:panelGrid columns="3" styleClass="no-column-borders" cellpadding="2"> 
             <p:commandButton id="selectButton" update=":form:display" oncomplete="projectDialog.show()" icon="ui-icon-search" title="Anzeigen" 
              actionListener="#{projectManagementBean.loadProject(p.projectId)}"> 
             </p:commandButton> 
            </p:panelGrid> 
           </p:column> 
          </p:dataTable> 
         </p:panel> 

         <ui:include src="./project/details.xhtml" /> 
         <ui:include src="./project/editdetails.xhtml" /> 
        </h:form> 
       </div> 
      </div> 
     </div> 
    </ui:define> 

</ui:composition> 

Answer 1

Eine schnelle Google der Fehlermeldung

PanelMenu zeigt kann nicht zerrissen werden wenn Unterelemente Kommentare enthalten. ein HTML-Alarmdialog wird angezeigt, auf dem geschrieben "UI Layout Initialisierungsfehler ..." und auf dem Server eine Ausnahme ausgelöst wird "java.lang.ClassCastException: com.sun.faces.facelets.compiler.UIInstructions kann nicht in org.primefaces.model.menu.MenuElement umgewandelt werden ".

Answer 2

Fügen Sie einfach diese zu Ihrem web.xml:

<context-param> 
    <param-name>facelets.SKIP_COMMENTS</param-name> 
    <param-value>true</param-value> 
</context-param> 

Es werden die Kommentare in Ihrem JSF überspringen beim Rendern.

Answer 3

Fügen Sie einfach diese zu Ihrem web.xml:

<context-param> 
    <param-name>javax.faces.FACELETS_SKIP_COMMENTS</param-name> 
    <param-value>true</param-value> 
</context-param> 

Es werden die Kommentare in Ihrem JSF überspringen beim Rendern.

Ab JSF1025 ist facelets.SKIP_COMMENTSdeprecated.

Answer 4

Bitte versuchen Sie die Einstellung folgendermaßen vor:

<context-param> 
    <param-name>primefaces.THEME</param-name> 
    <param-value>blitzer</param-value> 
</context-param>