Can we update the documentation on the method 
DialogDisplayer.getDefault().notify

It says "and will block the caller's thread".  However, if this call is being made from a non Event Dispatch Thread and the dialog takes longer than 10 seconds to initialise then it will return NotifyDescriptor.CLOSED_OPTION and the thread will not block, but the dialog will still appear.

...see this code in DialogDisplayerImpl
       synchronized (query) {
            javax.swing.SwingUtilities.invokeLater (query);
            try {
                query.wait (10000);
            } catch (InterruptedException ex) {
                // ok, should not happen and does not matter
            }
            
            if (query.running) {
                while (query.result == null) {
                    try {
                        query.wait ();
                    } catch (InterruptedException ex) {
                        // one more round
                    }
                }
                return query.result;
            } else {
                return NotifyDescriptor.CLOSED_OPTION;
            }
        }



"You have 10 seconds to make this dialog appear or it will self destruct".