Bug 120311 Double click any node in the outline, an error is thrown out
Description: Double click any node in the outline, an error is thrown out Steps to reproduce: 1. new a report 2. switch to the outline 3. double click a node in the outline Expect result: no exception are thrown out Actual result: an exception appears java.lang.NullPointerException at org.eclipse.birt.report.designer.internal.ui.views.actions.EditAction.isEnabled(EditAction.java:61) at org.eclipse.birt.report.designer.internal.ui.views.actions.AbstractElementAction.run(AbstractElementAction.java:49) at org.eclipse.birt.report.designer.internal.ui.views.RenameListener.doubleClick(RenameListener.java:211) at org.eclipse.jface.viewers.StructuredViewer$1.run(StructuredViewer.java:720) at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1044) at org.eclipse.core.runtime.Platform.run(Platform.java:783) at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:44) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:148) at org.eclipse.jface.viewers.StructuredViewer.fireDoubleClick(StructuredViewer.java:718) at org.eclipse.jface.viewers.StructuredViewer.handleDoubleSelect(StructuredViewer.java:950) at org.eclipse.jface.viewers.StructuredViewer$4.widgetDefaultSelected(StructuredViewer.java:1057) at org.eclipse.jface.util.OpenStrategy.fireDefaultSelectionEvent(OpenStrategy.java:219) at org.eclipse.jface.util.OpenStrategy.access$0(OpenStrategy.java:216) at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:275) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3080) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2713) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1699) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1663) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:367) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143) at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103) at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:226) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:163) 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.eclipse.core.launcher.Main.invokeFramework(Main.java:334) at org.eclipse.core.launcher.Main.basicRun(Main.java:278) at org.eclipse.core.launcher.Main.run(Main.java:973) at org.eclipse.core.launcher.Main.main(Main.java:948)
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/views/actions/EditAction.java
/*************************************************************************************
 * Copyright (c) 2004 Actuate Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     Actuate Corporation - Initial implementation.
 ************************************************************************************/
package org.eclipse.birt.report.designer.internal.ui.views.actions;
import org.eclipse.birt.report.designer.internal.ui.views.IRequestConstants;
import org.eclipse.birt.report.designer.nls.Messages;
import org.eclipse.birt.report.designer.ui.views.ProviderFactory;
import org.eclipse.birt.report.model.api.ReportElementHandle;
import org.eclipse.gef.Request;
import org.eclipse.jface.viewers.IStructuredSelection;
/**
 * This class represents the edit action
 * 
 *  
 */
public class EditAction extends AbstractElementAction