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/ProgressMonitorDialog.java
*/
	private void setMessage(String messageString) {
		
		message = messageString == null ? "" : messageString; 
		if (messageLabel == null || messageLabel.isDisposed())
			return;
		messageLabel.setText(message);
	}
	/**
	 * Update the message label. Required if the monitor is forked.
	 */
	private void update() {
		if (messageLabel == null || messageLabel.isDisposed())
			return;
		messageLabel.update();
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.window.Window#open()
	 */
	public int open() {
		
		if (!getOpenOnRun()) {
			if (getNestingDepth() == 0)
				return OK;
		}
		return super.open();
	}
}