jsf - java.lang.ClassCastException: com.sun.faces.facelets.compiler.UIInstructions no se puede convertir en org.primefaces.model.menu.MenuElement

Question

Esta mañana, llegué a mi oficina y lo primero que vi fue: el sitio de mi empresa se estrelló. Por mi culpa, creo.

Ahora intenté arreglar esto durante una hora y media, pero no encontré nada y todos pierden la razón porque el sitio web no funciona y no puedo arreglarlo (estoy solo. Los creadores del sitio ya no están). en vacaciones). Así que espero que me puedas ayudar!

Obtengo esta excepción cuando llamo al dashboard.xhtml de mi sitio web.

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

Mi problema es: en toda la excepción, en ninguna parte hay un archivo que hice por mí mismo. Así que realmente no sé dónde está exactamente mi error.

¿Me puedes ayudar?

Aquí hay algunas informaciones adicionales:

Toda la excepción:

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)

archivo completo dashborad:

<!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

Por favor, intente configurar lo siguiente:

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

Answer 2

Solo agrega esto a tu web.xml :

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

Se omitirán los comentarios en su JSF mientras se procesa.

Answer 3

Solo agrega esto a tu web.xml:

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

Se omitirán los comentarios en su JSF mientras se procesa.

A partir de JSF1025, facelets.SKIP_COMMENTS ha quedado en deprecated .

Answer 4

Un rápido google del mensaje de error muestra

PanelMenu no se puede representar cuando sus subelementos contienen comentarios. se mostrará un cuadro de diálogo de alerta html en el que se escribe "Error de inicialización de diseño de interfaz de usuario ..." y en el servidor se lanza una excepción "java.lang.ClassCastException: com.sun.faces.facelets.compiler.UILas instrucciones no se pueden convertir en org .primefaces.model.menu.MenuElement ".