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Reference to container in actionlistener
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;

public class TestAction extends JFrame {

    public TestAction() {
        this.setTitle("Test Click action");
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.setSize(300, 300);
        this.setLocation(200, 200);

        JButton button = new JButton("click me");
        button.addActionListener(new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent e) {
                JOptionPane.showMessageDialog(TestAction.this, TestAction.this.getTitle());
            }

        });
        this.getContentPane().add(button);
        this.setVisible(true);
    }

    public static void main(String[] args) {
        new TestAction();
    }
}