[richfaces-issues] [JBoss JIRA] Work started: (RF-3838) D'n'D tree support: java.lang.NullPointerException appears during drug & drop one tree node to another inside dataTable(one node) & subTable(another node).

D'n'D tree support: java.lang.NullPointerException appears during drug & drop one tree node to another inside dataTable(one node) & subTable(another node). ----------------------------------------------------------------------------------------------------------------------------------------------------------- Key: RF-3838 URL: https://jira.jboss.org/jira/browse/RF-3838 Project: RichFaces Issue Type: Bug Affects Versions: 3.2.2 Environment: IE6, IE7, FF 3.0, Opera 9.27, Safari 3.1(3.2.2) Reporter: Mikhail Vitenkov Assignee: Denis Morozov Fix For: 3.2.2 Attachments: DataTable.java, DataTable.jsp, TreeDndBean.java Step 1. Put one tree inside rich:dataTable's column. Step 2. Put another tree inside rich:dataTable subTable's column. Step 3. Drug a node from the 1st tree to the 2nd. Actual behavior: javax.faces.el.EvaluationException: org.apache.jasper.el.JspELException: /DataTable/DataTable.jsp(91,3) '#{treeDndBean.onDrop}' java.lang.NullPointerException at org.richfaces.webapp.taglib.MethodBindingMethodExpressionAdaptor.invoke(MethodBindingMethodExpressionAdaptor.java:56) at org.richfaces.component.events.TreeEvents.invokeListenerBindings(TreeEvents.java:78) at org.richfaces.component.UITree.broadcast(UITree.java:568) at org.richfaces.component.UITreeNode.broadcast(UITreeNode.java:140) at org.ajax4jsf.component.UIDataAdaptor.broadcast(UIDataAdaptor.java:1380) at org.richfaces.component.UITree.broadcast(UITree.java:550) at org.ajax4jsf.component.UIDataAdaptor.broadcast(UIDataAdaptor.java:1380) at org.ajax4jsf.component.AjaxViewRoot.processEvents(AjaxViewRoot.java:317) at org.ajax4jsf.component.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:292) at org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:249) at org.ajax4jsf.component.AjaxViewRoot.processApplication(AjaxViewRoot.java:462) at org.apache.myfaces.lifecycle.InvokeApplicationExecutor.execute(InvokeApplicationExecutor.java:32) at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:103) at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:76) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:148) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:154) at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:265) at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:376) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:503) 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:175) 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:286) 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:447) at java.lang.Thread.run(Unknown Source) Caused by: org.apache.jasper.el.JspELException: /DataTable/DataTable.jsp(91,3) '#{treeDndBean.onDrop}' java.lang.NullPointerException at org.apache.jasper.el.JspMethodExpression.invoke(JspMethodExpression.java:77) at org.richfaces.webapp.taglib.MethodBindingMethodExpressionAdaptor.invoke(MethodBindingMethodExpressionAdaptor.java:52) ... 32 more Caused by: java.lang.NullPointerException at tree.TreeDndBean.onDrop(TreeDndBean.java:299) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.el.parser.AstValue.invoke(AstValue.java:152) at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276) at org.apache.jasper.el.JspMethodExpression.invoke(JspMethodExpression.java:68) ... 33 more For more information see attached DataTable.jsp & TreeDndBean.java