Bug 29163 SafeRunnable needs to be accessible in JFace
We need to be able to access the SafeRunnable in JFace in order that some error protection can be added to preferences and properties dialogs.
bundles/org.eclipse.ui.workbench/extensions/org/eclipse/jface/dialogs/ErrorDialog.java
return list;
	}
	/* (non-Javadoc)
	 * Method declared on Window.
	 */
	/**
	 * Extends <code>Window.open()</code>.
	 * Opens an error dialog to display the error.
	 * If you specified a mask to filter the displaying of these
	 * children, the error dialog will only be displayed if there is at
	 * least one child status matching the mask.
	 */
	public int open() {
		if (shouldDisplay(status, displayMask)) {
			return super.open();
		}
		return 0;
	}
	/**
	 * Opens an error dialog to display the given error.  Use this method if the
	 * error object being displayed does not contain child items, or if you
	 * wish to display all such items without filtering.
	 *
	 * @param parent the parent shell of the dialog, or <code>null</code> if none
	 * @param dialogTitle the title to use for this dialog,
	 *   or <code>null</code> to indicate that the default title should be used
	 * @param message the message to show in this dialog, 
	 *   or <code>null</code> to indicate that the error's message should be shown
	 *   as the primary message
	 * @param status the error to show to the user