tree: "java heap space" Java Error appear in case using dropListener in tree component. --------------------------------------------------------------------------------------- Key: RF-3785 URL: http://jira.jboss.com/jira/browse/RF-3785 Project: RichFaces Issue Type: Bug Affects Versions: 3.2.2 Environment: IE, FF, Opera, Safari Reporter: Mikhail Vitenkov Assigned To: Denis Morozov Step 1. Use dropListener attribute following way: dropListener="#{treeDndBean.onDrop}" inside rich:tree tag. Java bean: public void onDrop(DropEvent dropEvent) { System.out.println("onDrop occured."); System.out.println("DragValue: " + dropEvent.getDragValue()); System.out.println("DropValue: " + dropEvent.getDropValue()); // resolve drag source attributes UITreeNode srcNode = (dropEvent.getDraggableSource() instanceof UITreeNode) ? (UITreeNode) dropEvent.getDraggableSource() : null; UITree srcTree = srcNode != null ? srcNode.getUITree() : null; TreeRowKey dragNodeKey = (dropEvent.getDragValue() instanceof TreeRowKey) ? (TreeRowKey) dropEvent.getDragValue() : null; // resolve drag destination attributes UITreeNode destNode = (dropEvent.getSource() instanceof UITreeNode) ? (UITreeNode) dropEvent.getSource() : null; UITree destTree = destNode != null ? destNode.getUITree() : getTree(dropEvent); TreeRowKey dropNodeKey = (dropEvent.getDropValue() instanceof TreeRowKey) ? (TreeRowKey) dropEvent.getDropValue() : null; FacesContext context = FacesContext.getCurrentInstance(); if (dropNodeKey != null) { // add destination node for rerender destTree.addRequestKey(dropNodeKey); Object state = null; TreeNode draggedNode = null; if (dragNodeKey != null) { // Drag from this or other tree draggedNode = srcTree.getTreeNode(dragNodeKey); TreeNode parentNode = draggedNode.getParent(); // 1. remove node from tree state = srcTree.removeNode(dragNodeKey); // 2. add parent for rerender Object rowKey = srcTree.getTreeNodeRowKey(parentNode); srcTree.addRequestKey(rowKey); } else if (dropEvent.getDragValue() != null) { // Drag from some drag source draggedNode = new TreeNodeImpl<String>(); draggedNode.setData(dropEvent.getDragValue().toString()); } // generate new node id Object id = getNewId(destTree.getTreeNode(dropNodeKey)); destTree.addNode(dropNodeKey, draggedNode, id, state); } AjaxContext ac = AjaxContext.getCurrentInstance(); // Add destination tree to reRender try { ac.addComponentToAjaxRender(destTree); } catch (Exception e) { System.err.print(e.getMessage()); } // Add source tree to reRender try { ac.addComponentToAjaxRender(srcTree); } catch (Exception e) { System.err.print(e.getMessage()); } System.out.println("+++++"); } Step 3. Navigate to the page contained tree rich component with D'n'D API. Step 4. Several times drag & drop any items from one tree to another. Actual behavior: org.apache.jasper.el.JspELException: /Tree/Tree.jsp(188,4) '#{treeDndBean.onDrop}' java.lang.OutOfMemoryError: Java heap space at javax.faces.webapp.FacesServlet.service(FacesServlet.java:277) 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:260) at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:366) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:493) 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(Thread.java:619) Caused by: javax.faces.el.EvaluationException: org.apache.jasper.el.JspELException: /Tree/Tree.jsp(188,4) '#{treeDndBean.onDrop}' java.lang.OutOfMemoryError: Java heap space 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.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 com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:82) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100) at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265) ... 18 more Caused by: org.apache.jasper.el.JspELException: /Tree/Tree.jsp(188,4) '#{treeDndBean.onDrop}' java.lang.OutOfMemoryError: Java heap space at org.apache.jasper.el.JspMethodExpression.invoke(JspMethodExpression.java:77) at org.richfaces.webapp.taglib.MethodBindingMethodExpressionAdaptor.invoke(MethodBindingMethodExpressionAdaptor.java:52) ... 31 more Caused by: java.lang.OutOfMemoryError: Java heap space Jun 24, 2008 10:50:28 AM org.apache.catalina.core.StandardWrapperValve invoke SEVERE: Servlet.service() for servlet Faces Servlet threw exception java.lang.OutOfMemoryError: Java heap space -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira