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/ProgressMonitorDialog.java
setBlockOnOpen(false);
	}
	/**
	 * Enables the cancel button (asynchronously).
	 * @param b The state to set the button to.
	 */
	private void asyncSetOperationCancelButtonEnabled(final boolean b) {
		if (getShell() != null) {
			getShell().getDisplay().asyncExec(new Runnable() {
				public void run() {
					setOperationCancelButtonEnabled(b);
				}
			});
		}
	}
	/**
	 * The cancel button has been pressed.
	 * 
	 * @since 3.0
	 */
	protected void cancelPressed() {
		
		
		
		
		
		
		cancel.setEnabled(false);
		progressMonitor.setCanceled(true);
		super.cancelPressed();