Bug 159998 NPE in TableViewerTests
N20061006 java.lang.NullPointerException at org.eclipse.jface.dialogs.TitleAreaDialog.setTitleImage(TitleAreaDialog.java:583) at org.eclipse.jface.tests.dialogs.TitleAreaDialogTest.testSetTitleImageNull(TitleAreaDialogTest.java:47) at org.eclipse.test.EclipseTestRunner.run(EclipseTestRunner.java:327) at org.eclipse.test.EclipseTestRunner.run(EclipseTestRunner.java:201) at org.eclipse.test.CoreTestApplication.runTests(CoreTestApplication.java:35) at org.eclipse.test.CoreTestApplication.run(CoreTestApplication.java:31) at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:74) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:348) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:165) at org.eclipse.core.launcher.Main.invokeFramework(Main.java:341) at org.eclipse.core.launcher.Main.basicRun(Main.java:285) at org.eclipse.core.launcher.Main.run(Main.java:987) at org.eclipse.core.launcher.Main.main(Main.java:962)
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/TitleAreaDialog.java
break;
			case IMessageProvider.INFORMATION:
				newImage = JFaceResources.getImage(DLG_IMG_MESSAGE_INFO);
				break;
			case IMessageProvider.WARNING:
				newImage = JFaceResources.getImage(DLG_IMG_MESSAGE_WARNING);
				break;
			case IMessageProvider.ERROR:
				newImage = JFaceResources.getImage(DLG_IMG_MESSAGE_ERROR);
				break;
			}
		}
		showMessage(newMessage, newImage);
	}
	/**
	 * Show the new message and image.
	 * 
	 * @param newMessage
	 * @param newImage
	 */
	private void showMessage(String newMessage, Image newImage) {
		
		if (message.equals(newMessage) && messageImage == newImage) {
			return;
		}
		message = newMessage;
		if (message == null)
			message = "";