rich:panelMenu renderer NPE
Hi All,
Hopefully this is an easy one...
I'm trying to build a rich:panelMenu object in my backing bean and then bind it to a rich:panelMenu tag in my page. For some reason I get a NullPointerException in the org.richfaces.renderkit.html.PanelMenuItemRenderer. Am I forgetting to do something? I've looked at the user guide and I couldn't figure out anything from there.
I'm using Tomcat v6.0.20, JSF 1.2 and RichFaces-3.3.1.GA.
Thanks!
import org.richfaces.component.html.HtmlPanelMenu;
import org.richfaces.component.html.HtmlPanelMenuGroup;
import org.richfaces.component.html.HtmlPanelMenuItem;
private HtmlPanelMenu trainingMenu;
public final HtmlPanelMenu getTrainingMenu() {
// We'll load the training menu only if necessary
if (null == this.trainingMenu) {
// Create a new instance of the HtmlPanelMenu
this.trainingMenu = new HtmlPanelMenu();
// Give it an ID
this.trainingMenu.setId("trainingMenu");
// Now add the stuff in the middle.
List<EventGroup> tmpGroupList = new ArrayList<EventGroup>(DAOFactory.getFactory().getEventGroupDAO().findByEventType(E_EventType.ACCT_ED_TRAINING));
// Iterate through event group as the salty, crunchy outer layer.
for (EventGroup eg : tmpGroupList) {
// Create the group.
HtmlPanelMenuGroup pmg = new HtmlPanelMenuGroup();
// Set the label for the group.
pmg.setLabel(eg.getEventGroupTitle());
// Iterate through the groups' members and add as a sweet, gooey caramel layer.
for (Event ev : eg.getEventGroupMembers()) {
// Make a new panel menu item
HtmlPanelMenuItem pmi = new HtmlPanelMenuItem();
// Set the item label
pmi.setLabel(ev.getEventTitle());
// Add the item to the parent group.
pmg.getChildren().add(pmi);
}
// Done with the group members, now add the group to the panel menu
this.trainingMenu.getChildren().add(pmg);
}
// Our sweet layer cake of menu-y goodness is now complete?
}
return this.trainingMenu;
}
<h:form id="frmAETGrp">
<rich:panelMenu binding="#{acctEdDispBean.trainingMenu}"/>
</h:form>
The stack trace:
Oct 22, 2009 4:22:07 PM com.sun.facelets.FaceletViewHandler handleRenderException SEVERE: Error Rendering View[/pages/home.xhtml] java.lang.NullPointerException at org.richfaces.renderkit.html.PanelMenuItemRenderer.isSelected(PanelMenuItemRenderer.java:261) at org.richfaces.renderkit.html.PanelMenuItemRenderer.getSelectedClass(PanelMenuItemRenderer.java:209) at org.richfaces.renderkit.html.HtmlPanelMenuItemRenderer.doEncodeBegin(HtmlPanelMenuItemRenderer.java:153) at org.richfaces.renderkit.html.HtmlPanelMenuItemRenderer.doEncodeBegin(HtmlPanelMenuItemRenderer.java:106) at org.ajax4jsf.renderkit.RendererBase.encodeBegin(RendererBase.java:100) at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:801) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:275) at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:258) at org.richfaces.renderkit.html.HtmlPanelMenuGroupRenderer.doEncodeChildren(HtmlPanelMenuGroupRenderer.java:209) at org.richfaces.renderkit.html.HtmlPanelMenuGroupRenderer.doEncodeChildren(HtmlPanelMenuGroupRenderer.java:204) at org.ajax4jsf.renderkit.RendererBase.encodeChildren(RendererBase.java:120) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:825) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:277) at org.richfaces.renderkit.html.PanelMenuRenderer.renderChildren(PanelMenuRenderer.java:543) at org.richfaces.renderkit.html.HtmlPanelMenuRenderer.doEncodeChildren(HtmlPanelMenuRenderer.java:261) at org.richfaces.renderkit.html.HtmlPanelMenuRenderer.doEncodeChildren(HtmlPanelMenuRenderer.java:256) at org.ajax4jsf.renderkit.RendererBase.encodeChildren(RendererBase.java:120) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:825) at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:234) at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:239) at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:239) at com.sun.faces.renderkit.html_basic.GridRenderer.renderRow(GridRenderer.java:178) at com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:126) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:825) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:936) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:942) at org.richfaces.renderkit.html.LayoutRenderer.renderLayout(LayoutRenderer.java:62) at org.richfaces.renderkit.html.LayoutRenderer.doEncodeChildren(LayoutRenderer.java:45) at org.ajax4jsf.renderkit.RendererBase.encodeChildren(RendererBase.java:120) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:825) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:277) at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:258) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:279) at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:258) at org.ajax4jsf.renderkit.html.AjaxOutputPanelRenderer.encodeChildren(AjaxOutputPanelRenderer.java:78) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:825) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:277) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:166) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:83) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:157) at org.ajax4jsf.renderkit.AjaxContainerRenderer.encodeAjax(AjaxContainerRenderer.java:123) at org.ajax4jsf.component.AjaxViewRoot.encodeAjax(AjaxViewRoot.java:677) at org.ajax4jsf.component.AjaxViewRoot.encodeChildren(AjaxViewRoot.java:548) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:936) at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:578) at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:100) at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:176) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:110) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:510) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178) at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290) at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:368) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:495) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.canfieldassoc.java.web.filter.HibernateSessionRequestFilter.doFilter(HibernateSessionRequestFilter.java:58) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454) at java.lang.Thread.run(Thread.java:619)
