Bug 61743 NPE in MessageDialog with null parent shell
I-build 2004-05-11 I have code that does the following: MessageDialog.openInformation(null, "Showing element", "Showning an integer of value: "+((Integer)match.getElement()).intValue()); This leads to a null pointer with the follwing stack trace: Thread [main] (Suspended (exception NullPointerException)) MessageDialog.<init>(Shell, String, Image, String, int, String[], int) line: 126 MessageDialog.openInformation(Shell, String, String) line: 305 TestUIParticipant.showMatch(Match, int, int, boolean) line: 57 JavaSearchResultPage.showMatch(Match, int, int, boolean) line: 153 AbstractTextSearchViewPage$9.run() line: 723 <snip> The API doc for MessageDialog say that I'm allowed to pass in null for the parent shell.
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/MessageDialog.java
*            </ul>
	 * @param dialogButtonLabels
	 *            an array of labels for the buttons in the button bar
	 * @param defaultIndex
	 *            the index in the button label array of the default button
	 */
	public MessageDialog(Shell parentShell, String dialogTitle,
			Image dialogTitleImage, String dialogMessage, int dialogImageType,
			String[] dialogButtonLabels, int defaultIndex) {
		super(parentShell);
		this.title = dialogTitle;
		this.titleImage = dialogTitleImage;
		this.message = dialogMessage;
		switch (dialogImageType) {
			case ERROR : {
				this.image = parentShell.getDisplay().getSystemImage(SWT.ICON_ERROR);
				break;
			}
			case INFORMATION : {
				this.image = parentShell.getDisplay().getSystemImage(SWT.ICON_INFORMATION);
				break;
			}
			case QUESTION : {
				this.image = parentShell.getDisplay().getSystemImage(SWT.ICON_QUESTION);
				break;
			}
			case WARNING : {
				this.image = parentShell.getDisplay().getSystemImage(SWT.ICON_WARNING);
				break;
			}