Hi,
I have a rich:tree with drop down menus and I need to open a new popup window by selecting a menuItem.
I can't get this working because the tree always tries to render itself while the popup window is getting opend. I then get the error you can see below.

Please if someone have experience with such issue, thank you to share...

Great thanks.

<rich:treeNode id="adminDomainNode" value="item" ajaxSubmitSelection="true" type="DOMAIN"
 nodeSelectListener="#{TPZAdminTreeBean.onTreeSelection}" style="border:1px solid #{a4jSkin.panelBorderColor}">
 <ddm:dropDownMenu id="adminDomainDdm" event="oncontextmenu" value="#{item.resource.name}">
 <mc:menuItem id="adminDomainMc3" value="Inserer un OTU" submitMode="ajax" ajaxSingle="true"
 onclick="openNewWindow('#{facesContext.externalContext.request.contextPath}/view/admin/new/otu/TPZAdminNewOTU.seam')"
 actionListener="#{TPZAdminTreeBean.setNewOtuParentDomain(item)}" immediate="true"/>
 </ddm:dropDownMenu>
</rich:treeNode>

Error Rendering View[/view/admin/main/TPZAdminSystemConfigTree.xhtml]
java.lang.NullPointerException at org.richfaces.renderkit.NodeRendererBase$TreeNodeOptions.<init>(NodeRendererBase.java:47)
 at org.richfaces.renderkit.NodeRendererBase.getDraggableScriptOptions(NodeRendererBase.java:306)
 at org.richfaces.renderkit.html.TreeNodeRenderer.doEncodeBegin(TreeNodeRenderer.java:221)
 at org.richfaces.renderkit.html.TreeNodeRenderer.doEncodeBegin(TreeNodeRenderer.java:86)
 at org.ajax4jsf.framework.renderer.RendererBase.encodeBegin(RendererBase.java:101)
 at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:512)
 at org.ajax4jsf.framework.renderer.RendererBase.renderChild(RendererBase.java:280)
 at org.richfaces.renderkit.TreeRendererBase$DataVisitorWithLastElement.process(TreeRendererBase.java:99)
 at org.richfaces.component.AbstractTreeDataModel.processElement(AbstractTreeDataModel.java:134)
 at org.richfaces.component.TreeDataModel.walk(TreeDataModel.java:74)
 at org.richfaces.component.TreeDataModel.walk(TreeDataModel.java:117)
 at org.richfaces.component.TreeDataModel.walk(TreeDataModel.java:117)
 at org.richfaces.component.UITree.walk(UITree.java:298)
 at org.richfaces.renderkit.TreeRendererBase.writeContent(TreeRendererBase.java:375)
 at org.richfaces.renderkit.TreeRendererBase.encodeChildren(TreeRendererBase.java:284)
 at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:524)
 at org.ajax4jsf.framework.renderer.RendererBase.renderChild(RendererBase.java:282)
 at org.ajax4jsf.framework.renderer.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:159)
 at org.ajax4jsf.framework.renderer.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:97)
 at org.ajax4jsf.framework.renderer.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:150)
 at org.ajax4jsf.framework.renderer.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:97)
 at org.ajax4jsf.framework.renderer.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:150)
 at org.ajax4jsf.framework.renderer.AjaxContainerRenderer.encodeAjax(AjaxContainerRenderer.java:125)
 at org.ajax4jsf.ajax.UIAjaxRegion.encodeAjax(UIAjaxRegion.java:243)
 at org.ajax4jsf.framework.ajax.AjaxViewRoot$4.invoke(AjaxViewRoot.java:368)
 at org.ajax4jsf.framework.ajax.JsfOneOneInvoker.invokeOnComponent(JsfOneOneInvoker.java:75)
 at org.ajax4jsf.framework.ajax.JsfOneOneInvoker.invokeOnComponent(JsfOneOneInvoker.java:80)
 at org.ajax4jsf.framework.ajax.JsfOneOneInvoker.invokeOnRegionOrRoot(JsfOneOneInvoker.java:55)
 at org.ajax4jsf.framework.ajax.AjaxContext.invokeOnRegionOrRoot(AjaxContext.java:191)
 at org.ajax4jsf.framework.ajax.AjaxViewRoot.encodeChildren(AjaxViewRoot.java:397)
 at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:234)
 at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:580)
 at org.apache.myfaces.trinidadinternal.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:181)
 at org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
 at org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:233)
 at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384)
 at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:57)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._invokeDoFilter(TrinidadFilterImpl.java:208)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:165)
 at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:138)
 at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:127)
 at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:277)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
 at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
 at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
 at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
 at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
 at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
 at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
 at java.lang.Thread.run(Thread.java:595)