1 Reply Latest reply on Apr 30, 2009 12:57 AM by Nick Belaevski

    RichFaces Tree givingrendering error, classcast exception

    ezani abdul halim Newbie

      Hello there

      I am trying out the RichFaces example in my own program (which simply c onsists of a simple CRUD with just one Bidder entity with Id and Name. I have successfully managed to display a rich DataTable when I add Bidder but when I copy the RichFaces tree code snippet from the Exadel demo and modify it for my program, I get a rendering error and a class cast exception. Here is my bidderList.xhmtl :-

      <!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:s="http://jboss.com/products/seam/taglib"
       xmlns:ui="http://java.sun.com/jsf/facelets"
       xmlns:f="http://java.sun.com/jsf/core"
       xmlns:h="http://java.sun.com/jsf/html"
       xmlns:rich="http://richfaces.org/rich"
       xmlns:a4j="http://richfaces.org/a4j"
       template="layout/template.xhtml">
      
      
      <ui:define name="body">
      
       <rich:panel>
       <f:facet name="header">bidderList</f:facet>
      
       <div class="results">
      
       <h:outputText value="No bidder exists"
       rendered="#{empty bidderList.resultList}"/>
      
       <h:dataTable id="bidderList" var="bidder"
       value="#{bidderList.resultList}"
       rendered="#{not empty bidderList.resultList}">
       <h:column>
       <f:facet name="header">Id</f:facet>
       #{bidder.id}
       </h:column>
       <h:column>
       <f:facet name="header">Name</f:facet>
       <s:link id="bidder"
       value="#{bidder.name}"
       propagation="none"
       view="/bidder.xhtml">
       <f:param name="bidderId"
       value="#{bidder.id}"/>
       </s:link>
       </h:column>
       </h:dataTable>
      
       </div>
      
       </rich:panel>
      
       <div class="actionButtons">
       <s:button id="done" value="Create bidder" view="/bidder.xhtml"/>
       </div>
      
      <rich:dataTable
       onRowMouseOver="this.style.backgroundColor='#F1F1F1'"
       onRowMouseOut="this.style.backgroundColor='#{a4jSkin.tableBackgroundColor}'"
       cellpadding="0" cellspacing="0"
       width="700" border="0" var="bidder" value="#{bidderList.resultList}" >
      
      
       <rich:columnGroup>
       <rich:column>
      
       <f:facet name="header">
       <h:outputText value="ID"></h:outputText>
       </f:facet>
       <h:outputText value="#{bidder.id}"></h:outputText>
       </rich:column>
       <rich:column>
       <f:facet name="header">
       <h:outputText value="Name"></h:outputText>
       </f:facet>
       <h:outputText value="#{bidder.name}" propagation="none"></h:outputText>
       </rich:column>
       </rich:columnGroup>
      
       <f:facet name="footer">
      
       <rich:columnGroup>
       <rich:column>Totals</rich:column>
       <rich:column>
       <h:outputText value="1"/>
       </rich:column>
       </rich:columnGroup>
       </f:facet>
      
       </rich:dataTable>
      
      <!-- Rich races tree control -->
      <h:form>
      <rich:tree style="width:300px" value="#{bidderList.resultList}" var="bidder" nodeFace="#{bidder.Id}">
       <rich:treeNode type="#{bidder.Id}">
       <h:outputText value="#{bidder.name}" />
       </rich:treeNode>
       </rich:tree>
      </h:form>
      
      </ui:define>
      
      </ui:composition>
      
      




      My error log gives:

      10:56:18,671 ERROR [STDERR] Apr 30, 2009 10:56:18 AM com.sun.facelets.FaceletViewHandler handleRenderException
      SEVERE: Error Rendering View[/bidderList.xhtml]
      java.lang.ClassCastException: org.domain.testseam.entity.Bidder
       at org.richfaces.model.SwingTreeDataModel.setWrappedData(SwingTreeDataModel.java:66)
       at org.richfaces.component.UITree.createDataModel(UITree.java:677)
       at org.ajax4jsf.component.UIDataAdaptor.getExtendedDataModel(UIDataAdaptor.java:621)
       at org.ajax4jsf.component.UIDataAdaptor.setRowKey(UIDataAdaptor.java:339)
       at org.richfaces.renderkit.TreeRendererBase.writeContent(TreeRendererBase.java:632)
       at org.richfaces.renderkit.TreeRendererBase.encodeChildren(TreeRendererBase.java:573)
       at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
       at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
       at javax.faces.render.Renderer.encodeChildren(Renderer.java:137)
       at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
       at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
       at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892)
       at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:592)
       at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
       at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:196)
       at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)
       at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
       at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
       at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:38)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:177)
       at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:267)
       at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:380)
       at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:507)
       at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
       at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
       at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
       at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
       at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
       at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
       at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
       at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
       at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
       at java.lang.Thread.run(Thread.java:595)
      10:56:18,671 WARN [lifecycle] executePhase(RENDER_RESPONSE 6,com.sun.faces.context.FacesContextImpl@100ac03) threw exception
      java.lang.ClassCastException: org.domain.testseam.entity.Bidder
       at org.richfaces.model.SwingTreeDataModel.setWrappedData(SwingTreeDataModel.java:66)
       at org.richfaces.component.UITree.createDataModel(UITree.java:677)
       at org.ajax4jsf.component.UIDataAdaptor.getExtendedDataModel(UIDataAdaptor.java:621)
       at org.ajax4jsf.component.UIDataAdaptor.setRowKey(UIDataAdaptor.java:339)
       at org.richfaces.renderkit.TreeRendererBase.writeContent(TreeRendererBase.java:632)
       at org.richfaces.renderkit.TreeRendererBase.encodeChildren(TreeRendererBase.java:573)
       at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
       at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
       at javax.faces.render.Renderer.encodeChildren(Renderer.java:137)
       at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
       at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
       at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892)
       at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:592)
       at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
       at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:196)
       at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)
       at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
       at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
       at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:38)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:177)
       at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:267)
       at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:380)
       at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:507)
       at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
       at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
       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:230)
       at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
       at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
       at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
       at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
       at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
       at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
       at java.lang.Thread.run(Thread.java:595)
      10:56:18,687 WARN [ExceptionFilter] handling uncaught exception
      javax.servlet.ServletException: org.domain.testseam.entity.Bidder
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:256)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
       at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:38)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:177)
       at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:267)
       at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:380)
       at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:507)
       at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
       at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
       at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
       at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
       at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
       at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
       at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
       at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
       at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
       at java.lang.Thread.run(Thread.java:595)
      Caused by: java.lang.ClassCastException: org.domain.testseam.entity.Bidder
       at org.richfaces.model.SwingTreeDataModel.setWrappedData(SwingTreeDataModel.java:66)
       at org.richfaces.component.UITree.createDataModel(UITree.java:677)
       at org.ajax4jsf.component.UIDataAdaptor.getExtendedDataModel(UIDataAdaptor.java:621)
       at org.ajax4jsf.component.UIDataAdaptor.setRowKey(UIDataAdaptor.java:339)
       at org.richfaces.renderkit.TreeRendererBase.writeContent(TreeRendererBase.java:632)
       at org.richfaces.renderkit.TreeRendererBase.encodeChildren(TreeRendererBase.java:573)
       at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
       at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
       at javax.faces.render.Renderer.encodeChildren(Renderer.java:137)
       at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
       at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
       at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892)
       at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:592)
       at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
       at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:196)
       at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)
       at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
       at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
       ... 38 more
      10:56:18,687 WARN [ExceptionFilter] exception root cause
      java.lang.ClassCastException: org.domain.testseam.entity.Bidder
       at org.richfaces.model.SwingTreeDataModel.setWrappedData(SwingTreeDataModel.java:66)
       at org.richfaces.component.UITree.createDataModel(UITree.java:677)
       at org.ajax4jsf.component.UIDataAdaptor.getExtendedDataModel(UIDataAdaptor.java:621)
       at org.ajax4jsf.component.UIDataAdaptor.setRowKey(UIDataAdaptor.java:339)
       at org.richfaces.renderkit.TreeRendererBase.writeContent(TreeRendererBase.java:632)
       at org.richfaces.renderkit.TreeRendererBase.encodeChildren(TreeRendererBase.java:573)
       at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
       at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
       at javax.faces.render.Renderer.encodeChildren(Renderer.java:137)
       at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
       at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
       at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892)
       at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:592)
       at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
       at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:196)
       at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)
       at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
       at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
       at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:38)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:177)
       at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:267)
       at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:380)
       at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:507)
       at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
       at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
       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:230)
       at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
       at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
       at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
       at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
       at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
       at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
       at java.lang.Thread.run(Thread.java:595)
      10:56:18,687 WARN [ExceptionFilter] running exception handlers
      


      Note that when I remove the RichFaces tree code snippet, the program works perfectly! Please tell me what I have donewrong.