I don't think this is the problem, but I don't think you want the a4j:region outside of the form.
As for the exception, that would occur if the tree data model is null. Here is the line: TreeState state = getDataModel().getTreeState(); On 6/27/07, Novin <[EMAIL PROTECTED]> wrote:
Hi freinds, I have implemented tamhalk tree2, Initially it was working fine but now It is throwing nullpointer when treis to render the tree. Pls help me. here is the JSP page code for the tree to be displayed and stack trace of the exception. Does any one have any idea? Here is the faces config file. http://www.nabble.com/file/p11330136/faces-config.xml faces-config.xml Thanks and Regards, Novin Jaiswal <f:subview id="accounttreesubview"> <a4j:region> <a4j:outputPanel ajaxRendered="true"> <h:messages/> </a4j:outputPanel> <h:form id="frmAccountGrpupUpdate"> <a4j:outputPanel id="accountTreePanel"> <t:tree2 id="clientTree" value="#{accountTreeBean.treeData}" var="node" varNodeToggler="t" > <f:facet name="person" > <h:panelGroup id="grp1"> <h:outputText value="#{node.description}" id="temp3"/> </h:panelGroup> </f:facet> <f:facet name="foo-folder"> <h:panelGroup id="grp2"> <h:outputText value="#{node.description}" id="temp7"/> </h:panelGroup> </f:facet> <f:facet name="document"> <h:panelGroup id="grp3"> <h:outputText value="#{node.description}" id="temp11"/> </h:panelGroup> </f:facet> </t:tree2> </a4j:outputPanel> </h:form> </a4j:region> </f:subview> SRVE0068E: Uncaught exception thrown in one of the service methods of the servlet: /pages/csin/tiles/account/accountTree.jsp. Exception thrown : java.lang.NullPointerException at org.apache.myfaces.custom.tree2.UITreeData.encodeEnd(UITreeData.java:120) at org.ajax4jsf.framework.renderer.RendererBase.renderChild(RendererBase.java:286) at org.ajax4jsf.framework.renderer.RendererBase.renderChildren(RendererBase.java:262) at org.ajax4jsf.renderkit.html.AjaxOutputPanelRenderer.encodeChildren(AjaxOutputPanelRenderer.java:79) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:735) at org.ajax4jsf.framework.renderer.RendererBase.renderChild(RendererBase.java:282) at org.ajax4jsf.framework.renderer.RendererBase.renderChildren(RendererBase.java:262) at org.ajax4jsf.framework.renderer.RendererBase.renderChild(RendererBase.java:284) at org.ajax4jsf.framework.renderer.RendererBase.renderChildren(RendererBase.java:262) at org.ajax4jsf.framework.renderer.AjaxContainerRenderer.encodeChildren(AjaxContainerRenderer.java:100) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:735) at org.ajax4jsf.ajax.UIAjaxRegion.encodeChildren(UIAjaxRegion.java:117) at javax.faces.webapp.UIComponentTag.encodeChildren(UIComponentTag.java:611) at javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:548) at com.ibm._jsp._accountTree._jspx_meth_a4j_region_0(_accountTree.java:448) at com.ibm._jsp._accountTree._jspx_meth_f_subview_0(_accountTree.java:468) at com.ibm._jsp._accountTree._jspService(_accountTree.java:93) at com.ibm.ws.jsp.runtime.HttpJspBase.service(HttpJspBase.java:85) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:966) at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:907) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:118) at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:87) at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:701) at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:646) at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:475) at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:463) at com.ibm.wsspi.webcontainer.servlet.GenericServletWrapper.handleRequest(GenericServletWrapper.java:115) at com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionServletWrapper.handleRequest(AbstractJSPExtensionServletWrapper.java:168) at com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionProcessor.handleRequest(AbstractJSPExtensionProcessor.java:270) at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.include(WebAppRequestDispatcher.java:606) at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:1034) at org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:484) at org.apache.struts.tiles.TilesUtilImpl.doInclude(TilesUtilImpl.java:137) at org.apache.struts.tiles.TilesUtil.doInclude(TilesUtil.java:177) at org.apache.struts.taglib.tiles.InsertTag.doInclude(InsertTag.java:756) at org.apache.struts.taglib.tiles.InsertTag$InsertHandler.doEndTag(InsertTag.java:881) at org.apache.struts.taglib.tiles.InsertTag.doEndTag(InsertTag.java:473) at com.ibm._jsp._commonLayout._jspx_meth_tiles_insert_3(_commonLayout.java:212) at com.ibm._jsp._commonLayout._jspx_meth_f_view_0(_commonLayout.java:264) at com.ibm._jsp._commonLayout._jspService(_commonLayout.java:131) at com.ibm.ws.jsp.runtime.HttpJspBase.service(HttpJspBase.java:85) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:966) at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:907) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:118) at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:87) at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:701) at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:646) at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:475) at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:463) at com.ibm.wsspi.webcontainer.servlet.GenericServletWrapper.handleRequest(GenericServletWrapper.java:115) at com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionServletWrapper.handleRequest(AbstractJSPExtensionServletWrapper.java:168) at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:308) at com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:325) at org.apache.myfaces.tomahawk.application.jsp.JspTilesViewHandlerImpl.dispatch(JspTilesViewHandlerImpl.java:236) at org.apache.myfaces.tomahawk.application.jsp.JspTilesViewHandlerImpl.renderView(JspTilesViewHandlerImpl.java:222) at org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108) at org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:233) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87) at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:220) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:118) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:198) at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:966) at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:907) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:145) at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:127) at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:277) at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:190) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:130) at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:147) at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:190) at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:130) at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:87) at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:701) at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:646) at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:475) at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:463) at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:92) at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:744) at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1433) at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:93) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:465) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:394) at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:274) at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214) at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113) at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:152) at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:213) at com.ibm.io.async.AbstractAsyncFuture.fireCompletionActions(AbstractAsyncFuture.java:195) at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:136) at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:194) at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:741) at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:863) at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1510) -- View this message in context: http://www.nabble.com/Problem-in-Tree2%3A-nullpointer-org.apache.myfaces.custom.tree2.UITreeData.encodeEnd-tf3990148.html#a11330136 Sent from the MyFaces - Users mailing list archive at Nabble.com.
