How does inner class access outter class functions?

This program works in java. I was expecting it to work in groovy 1.7.8. The problem is line 9. How do call the add function in ButtonDemo initialization?

I could abandon the anonymous inner class and make it work. How can I keep the anonymous inner classes for the the JButton and call JPanel.add?
Thanks!
Siegfried

package components;
import javax.swing.*;
import java.awt.event.*;
public class ButtonDemo extends JPanel{
    protected int count = 0;
    protected ButtonDemo me = this;
    public ButtonDemo() {
        ((new JButton("push me", null){{
            me.add(this);
            //this.ButtonDemo.add(this);
        }})).addActionListener(new ActionListener(){
                public void actionPerformed(ActionEvent e) {
                    System.out.println("count ="+(count++)+" "+new java.util.Date());
                }
        });
    }

/**
     * Create the GUI and show it.  For thread safety, 
     * this method should be invoked from the 
     * event-dispatching thread.
     */
    private static void createAndShowGUI() {

//Create and set up the window.
        JFrame frame = new JFrame("ButtonDemo");
        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

//Create and set up the content pane.
        ButtonDemo newContentPane = new ButtonDemo();
        newContentPane.setOpaque(true); //content panes must be opaque
        frame.setContentPane(newContentPane);

//Display the window.
        frame.pack();
        frame.setVisible(true);
    }
    public static void main(String[] args) {
        //Schedule a job for the event-dispatching thread:
        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI(); 
            }
        });
    }
}

I was expecting it to work in groovy 1.7.8.

What has groovy got to do with this ? Don't duplicate threads. Continue there. Closing this one.