[richfaces-issues] [JBoss JIRA] Created: (RF-3802) tree: javax.servlet.ServletException cause of java.lang.NullPointerException in case using rich:tree inside rich:dataTable component.

[Mikhail Vitenkov (JIRA)]

tree: javax.servlet.ServletException cause of java.lang.NullPointerException  in case using rich:tree inside rich:dataTable component.
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                 Key: RF-3802
                 URL: http://jira.jboss.com/jira/browse/RF-3802
             Project: RichFaces
          Issue Type: Bug
         Environment: IE6, IE7, FF 3.0, Opera 9.27, Safari 3.1
            Reporter: Mikhail Vitenkov
         Assigned To: Nick Belaevski


I try to use rich:tree component inside dataTable rich:component & have got NullPointerException in this case. For more information see attached dataTable.jsp page ,TreeDnDBean & TreeContainer java beans used in tree component.
And following error take place during the page loading:

javax.servlet.ServletException
	javax.faces.webapp.FacesServlet.service(FacesServlet.java:277)
	org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:154)
	org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:265)
	org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:376)
	org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:503)

root cause

java.lang.NullPointerException
	org.richfaces.model.TreeDataModelNodeAdaptor$1.getChild(TreeDataModelNodeAdaptor.java:68)
	org.richfaces.model.TreeDataModelNodeAdaptor$1.getChild(TreeDataModelNodeAdaptor.java:94)
	org.richfaces.model.TreeDataModel.locateTreeNode(TreeDataModel.java:223)
	org.richfaces.model.TreeDataModel.locateTreeNode(TreeDataModel.java:187)
	org.richfaces.model.TreeDataModel.isRowAvailable(TreeDataModel.java:260)
	org.ajax4jsf.component.UIDataAdaptor.isRowAvailable(UIDataAdaptor.java:267)
	org.ajax4jsf.component.UIDataAdaptor.setRowKey(UIDataAdaptor.java:354)
	org.richfaces.renderkit.TreeRendererBase$2.processNode(TreeRendererBase.java:618)
	org.richfaces.model.TreeDataModel.doWalk(TreeDataModel.java:111)
	org.richfaces.model.TreeDataModel.doWalk(TreeDataModel.java:159)
	org.richfaces.model.TreeDataModel.doWalk(TreeDataModel.java:159)
	org.richfaces.model.TreeDataModel.doWalk(TreeDataModel.java:159)
	org.richfaces.model.TreeDataModel.walk(TreeDataModel.java:183)
	org.richfaces.model.CacheableTreeDataModel.walk(CacheableTreeDataModel.java:131)
	org.richfaces.component.UITree.walk(UITree.java:385)
	org.richfaces.renderkit.TreeRendererBase.writeContent(TreeRendererBase.java:631)
	org.richfaces.renderkit.TreeRendererBase.encodeChildren(TreeRendererBase.java:574)
	javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837)
	org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282)
	org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262)
	org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:284)
	org.richfaces.renderkit.AbstractRowsRenderer.encodeCellChildren(AbstractRowsRenderer.java:285)
	org.richfaces.renderkit.AbstractTableRenderer.encodeOneRow(AbstractTableRenderer.java:313)
	org.richfaces.renderkit.AbstractRowsRenderer.process(AbstractRowsRenderer.java:86)
	org.richfaces.model.ModifiableModel.walk(ModifiableModel.java:121)
	org.ajax4jsf.component.UIDataAdaptor.walk(UIDataAdaptor.java:1152)
	org.richfaces.renderkit.AbstractRowsRenderer.encodeRows(AbstractRowsRenderer.java:106)
	org.richfaces.renderkit.AbstractRowsRenderer.encodeRows(AbstractRowsRenderer.java:91)
	org.richfaces.renderkit.AbstractRowsRenderer.encodeChildren(AbstractRowsRenderer.java:138)
	javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837)
	com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:234)
	com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:239)
	com.sun.faces.renderkit.html_basic.GroupRenderer.encodeChildren(GroupRenderer.java:106)
	javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837)
	com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:234)
	com.sun.faces.renderkit.html_basic.GridRenderer.renderRow(GridRenderer.java:178)
	com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:126)
	javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837)
	javax.faces.component.UIComponent.encodeAll(UIComponent.java:936)
	javax.faces.render.Renderer.encodeChildren(Renderer.java:148)
	javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837)
	javax.faces.component.UIComponent.encodeAll(UIComponent.java:936)
	javax.faces.component.UIComponent.encodeAll(UIComponent.java:942)
	com.sun.faces.application.ViewHandlerImpl.doRenderView(ViewHandlerImpl.java:271)
	com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:202)
	org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
	org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:191)
	com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:109)
	com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
	com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
	javax.faces.webapp.FacesServlet.service(FacesServlet.java:266)
	org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:154)
	org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:265)
	org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:376)
	org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:503)


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