🚀 go-pugleaf

Following source is worked at general console... with jdk 1.3.1
but.. that isn't worked with JBuilder 4.0 Enterprise (with Jbuilder JDK, or
Sun JDK1.3.1)
and occur runtime error..
[ java.lang.VerifyError: (class: ClientMainFrame, method: jbInit signature:
()V) Incompatible object argument for function call

  Exception in thread "main"  ]

Plz. give me a solutions to a problem.......




import java.awt.*;
import java.awt.event.*;


public class ClientMainFrame extends Frame
{
  Panel pnlTop = new Panel();
  Panel pnlMid = new Panel();
  Panel pnlBtm = new Panel();
  BorderLayout borderLayout1 = new BorderLayout();
  CardLayout cardLayoutList = new CardLayout();
  Panel panel1 = new Panel();
  Panel panel2 = new Panel();
  BorderLayout borderLayout2 = new BorderLayout();
  BorderLayout borderLayout3 = new BorderLayout();
  List list1 = new List();
  List list2 = new List();
  Button button1 = new Button();
  GridBagLayout gridBagLayout1 = new GridBagLayout();

  public ClientMainFrame()
  {
    try
    {
      jbInit();
    }
    catch(Exception e)
    {
      e.printStackTrace();
    }
  }
  private void jbInit() throws Exception
  {
    this.setLayout(gridBagLayout1);
    pnlBtm.setLayout(borderLayout1);
    pnlMid.setLayout(cardLayoutList);
    panel1.setLayout(borderLayout2);
    panel2.setLayout(borderLayout3);
    button1.setLabel("button1");
    button1.addActionListener(new java.awt.event.ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        button1_actionPerformed(e);
      }
    });
    list2.setBackground(new Color(192, 192, 138));
    list1.setBackground(new Color(192, 184, 217));
    this.add(pnlTop, new GridBagConstraints(0, 0, 1, 1, 1.0, 1.0
            ,GridBagConstraints.CENTER, GridBagConstraints.BOTH, new
Insets(0, 0, 0, 0), 290, 40));
    this.add(pnlMid, new GridBagConstraints(0, 1, 1, 1, 1.0, 1.0
            ,GridBagConstraints.CENTER, GridBagConstraints.BOTH, new
Insets(0, 0, 0, 0), 300, 300));
    pnlMid.add(panel1, "panel1");
    panel1.add(list1, BorderLayout.CENTER);
    pnlMid.add(panel2, "panel2");
    panel2.add(list2, BorderLayout.CENTER);
    this.add(pnlBtm, new GridBagConstraints(0, 2, 1, 1, 1.0, 1.0
            ,GridBagConstraints.CENTER, GridBagConstraints.BOTH, new
Insets(0, 0, 0, 0), 225, 21));
    cardLayoutList.show(pnlMid,"panel1");
    pnlBtm.add(button1, BorderLayout.CENTER);
    this.setVisible(true);
    this.pack();
  }

  void button1_actionPerformed(ActionEvent e)
  {
     cardLayoutList.next(pnlMid);
  }
  public static void main(String[] args)
  {

    new ClientMainFrame();
  }

}