Bug 51837 [Progress] Bad message in progress dialog
I20040210 I got a bogus message when running a pile of jobs. A progress dialog appeared that read: "The operation cannot proceed because it is blocked by a background" A background what? :)
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/Dialog.java
* @return the button for the ID or <code>null</code>
	 * 
	 * @see #createButton(Composite, int, String, boolean)
	 * @since 2.0
	 */
	protected Button getButton(int id) {
		return (Button) buttons.get(new Integer(id));
	}
	/**
	 * Returns the button bar control.
	 * <p>
	 * Clients may call this framework method, but should not override it.
	 * </p>
	 *
	 * @return the button bar, or <code>null</code> if
	 * the button bar has not been created yet
	 */
	protected Control getButtonBar() {
		return buttonBar;
	}
	/**
	 * Returns the button created when <code>createButton</code> is called 
	 * with an ID of <code>IDialogConstants.CANCEL_ID</code>.  If 
	 * <code>createButton</code> was never called with this parameter, or 
	 * if <code>createButton</code> is overridden, <code>getCancelButton</code>
	 * will return <code>null</code>.
	 * 
	 * @return the cancel button or <code>null</code>
	 * 
	 * @see #createButton(Composite, int, String, boolean)