ActionListener et récupération d'attribut

public class Display
{
    private final Popup popup;
    private String name;

    public Display()
    {
        this.popup = new Popup(this);
    }

    public void setName(String name)
    {
        this.name = name;
    }
}

public class Popup
{
    private final Display display;
    private final JTextField name;
    private final JButton validate;

    public Popup(Display display)
    {
        this.display = display;
        this.name = new JTextField();
        this.validate = new JButton("Valider");
        this.validate.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                display.setName(name.getText());
            }
        });
    }
}