Need help making Objects visable (swing)

In the following code, Main().jButton1's ActionPerformed does not
result in a visable SubForm. What am I doing wrong?

/*
 * Main.java
 *
 * Created on December 14, 2006, 6:02 PM
 */

package Test;

/**
 *
 * @author Administrator
 */
public class Main extends javax.swing.JFrame {

    /** Creates new form Main */
    public Main() {
        initComponents();
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">

    private void initComponents() {
        jButton1 = new javax.swing.JButton();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        jButton1.setText("jButton1");
        jButton1.addActionListener(new java.awt.event.ActionListener()
{
            public void actionPerformed(java.awt.event.ActionEvent evt)
{
                jButton1ActionPerformed(evt);
            }
        });

        org.jdesktop.layout.GroupLayout layout = new
org.jdesktop.layout.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(

layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(0, 400, Short.MAX_VALUE)
            .add(jButton1)
        );
        layout.setVerticalGroup(

layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(0, 300, Short.MAX_VALUE)
            .add(jButton1)
        );
        pack();
    }// </editor-fold>

    private void jButton1ActionPerformed(java.awt.event.ActionEvent
evt) {
        new SubForm().setVisible(true);
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Main().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify
    private javax.swing.JButton jButton1;
    // End of variables declaration

}

/*
 * SubForm.java
 *
 * Created on December 14, 2006, 6:02 PM
 */

package Test;

/**
 *
 * @author Administrator
 */
public class SubForm extends javax.swing.JPanel {

    /** Creates new form SubForm */
    public SubForm() {
        initComponents();
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc=" Generated Code ">

    private void initComponents() {
        jLabel1 = new javax.swing.JLabel();

        jLabel1.setText("SubForm Showing");

        org.jdesktop.layout.GroupLayout layout = new
org.jdesktop.layout.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(

layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(182, 182, 182)
                .add(jLabel1)
                .addContainerGap(133, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(

layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(84, 84, 84)
                .add(jLabel1)
                .addContainerGap(202, Short.MAX_VALUE))
        );
    }// </editor-fold>

    // Variables declaration - do not modify
    private javax.swing.JLabel jLabel1;
    // End of variables declaration

}