problem in login in yahoo massanger
<p>package session;</p>

<p>import java.io.FileWriter;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import javax.swing.JOptionPane;
import org.openymsg.network.FireEvent;
import org.openymsg.network.Session;
import org.openymsg.network.SessionState;
import org.openymsg.network.event.SessionListener;</p>

<p>public class BotGUI extends javax.swing.JFrame implements SessionListener{</p>

<pre><code>/** Creates new form BotGUI */
FileWriter fw;
DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
public BotGUI() {
    initComponents();
}
@SuppressWarnings("unchecked")
// &lt;editor-fold defaultstate="collapsed" desc="Generated Code"&gt;
private void initComponents() {

    jPanel1 = new javax.swing.JPanel();
    jPanel2 = new javax.swing.JPanel();
    jPanel3 = new javax.swing.JPanel();
    jLabel1 = new javax.swing.JLabel();
    jPanel4 = new javax.swing.JPanel();
    jLabel2 = new javax.swing.JLabel();
    jLabel3 = new javax.swing.JLabel();
    uNameTextField = new javax.swing.JTextField();
    uPassPasswordField = new javax.swing.JPasswordField();
    jButton1 = new javax.swing.JButton();
    jMenuBar1 = new javax.swing.JMenuBar();
    jMenu1 = new javax.swing.JMenu();
    jMenuItem1 = new javax.swing.JMenuItem();
    jMenuItem2 = new javax.swing.JMenuItem();
    jMenuItem3 = new javax.swing.JMenuItem();
    jMenu2 = new javax.swing.JMenu();

    setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

    jPanel2.setLayout(new org.netbeans.lib.awtextra.AbsoluteLayout());

    jPanel3.setBackground(new java.awt.Color(51, 51, 51));

    jLabel1.setBackground(new java.awt.Color(0, 0, 255));
    jLabel1.setFont(new java.awt.Font("Tahoma", 1, 12));
    jLabel1.setForeground(new java.awt.Color(255, 255, 255));
    jLabel1.setText("Yahoo Login Panel");

    javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
    jPanel3.setLayout(jPanel3Layout);
    jPanel3Layout.setHorizontalGroup(
        jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel3Layout.createSequentialGroup()
            .addGap(38, 38, 38)
            .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 140, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addContainerGap(532, Short.MAX_VALUE))
    );
    jPanel3Layout.setVerticalGroup(
        jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addComponent(jLabel1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 30, Short.MAX_VALUE)
    );

    jPanel2.add(jPanel3, new org.netbeans.lib.awtextra.AbsoluteConstraints(0, 0, 710, 30));

    jPanel4.setLayout(new org.netbeans.lib.awtextra.AbsoluteLayout());

    jLabel2.setText("Username");
    jPanel4.add(jLabel2, new org.netbeans.lib.awtextra.AbsoluteConstraints(30, 20, 60, 20));

    jLabel3.setText("Password");
    jPanel4.add(jLabel3, new org.netbeans.lib.awtextra.AbsoluteConstraints(270, 20, 60, 20));
    jPanel4.add(uNameTextField, new org.netbeans.lib.awtextra.AbsoluteConstraints(100, 20, 140, 20));
    jPanel4.add(uPassPasswordField, new org.netbeans.lib.awtextra.AbsoluteConstraints(330, 20, 140, -1));

    jButton1.setFont(new java.awt.Font("Tahoma", 1, 14)); // NOI18N
    jButton1.setText("Login");
    jButton1.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jButton1ActionPerformed(evt);
        }
    });
    jPanel4.add(jButton1, new org.netbeans.lib.awtextra.AbsoluteConstraints(490, 15, 90, -1));

    jPanel2.add(jPanel4, new org.netbeans.lib.awtextra.AbsoluteConstraints(0, 30, 710, 60));

    javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
    jPanel1.setLayout(jPanel1Layout);
    jPanel1Layout.setHorizontalGroup(
        jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addComponent(jPanel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
    );
    jPanel1Layout.setVerticalGroup(
        jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel1Layout.createSequentialGroup()
            .addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, 135, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addContainerGap(293, Short.MAX_VALUE))
    );

    jMenu1.setText("Option");

    jMenuItem1.setText("Logout");
    jMenu1.add(jMenuItem1);

    jMenuItem2.setText("Load CSV");
    jMenu1.add(jMenuItem2);

    jMenuItem3.setText("Exit");
    jMenu1.add(jMenuItem3);

    jMenuBar1.add(jMenu1);

    jMenu2.setText("Help");
    jMenuBar1.add(jMenu2);

    setJMenuBar(jMenuBar1);

    javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
    getContentPane().setLayout(layout);
    layout.setHorizontalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
    );
    layout.setVerticalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
    );

    pack();
}// &lt;/editor-fold&gt;

public void handleConnectionClosed() {
    connectionClosed = true;
    loggedIn = false;
}

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
    if(!uNameTextField.getText().equals("") &amp;&amp; !uPassPasswordField.getText().equals("")){
        Yahoo_login(uNameTextField.getText(),uPassPasswordField.getText());
    }else{
        JOptionPane.showMessageDialog(null, "Plese Enter User Id and Password");
    }
}
</code></pre>

<p>Session yahooMessengerSession;
    MySessionListener mySessionListener;
    boolean loggedIn = false;
    boolean connectionClosed = false;</p>

<pre><code>public void Yahoo_login(String uName, String pass) {
    connectionClosed = false;
    if (loggedIn == false) {
        yahooMessengerSession = new Session();
        mySessionListener = new MySessionListener(this);
        yahooMessengerSession.addSessionListener(mySessionListener);

        try {
            if ((uName.equals("")) || (pass.equals("")))
                {
                    System.out.println("User name/password is blank");
                }
            else{
                    //initialized a file writer for log file
                    System.out.println("Login start........");
                    yahooMessengerSession.login(uName, pass, true);
                    //checks whether user was succesful in login in
                    if (yahooMessengerSession!=null &amp;&amp; yahooMessengerSession.getSessionStatus()== SessionState.LOGGED_ON) {
                        //this loop is reached when the user has been successfully logined
                        System.out.println("Login Success");
                        fw.write("User (" + uName + ") logged in at : " + dateFormat.format("09.05.10") + " \n");
                        fw.close();
           } else {
               yahooMessengerSession.reset();
          }
       }
     } catch(Exception e){ }
    }
}
public static void main(String args[]) {
    java.awt.EventQueue.invokeLater(new Runnable() {
        public void run() {
            new BotGUI().setVisible(true);
        }
    });
}

// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JMenu jMenu1;
private javax.swing.JMenu jMenu2;
private javax.swing.JMenuBar jMenuBar1;
private javax.swing.JMenuItem jMenuItem1;
private javax.swing.JMenuItem jMenuItem2;
private javax.swing.JMenuItem jMenuItem3;
private javax.swing.JPanel jPanel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JPanel jPanel3;
private javax.swing.JPanel jPanel4;
private javax.swing.JTextField uNameTextField;
private javax.swing.JPasswordField uPassPasswordField;
// End of variables declaration

public void dispatch(FireEvent fe) {
    throw new UnsupportedOperationException("Not supported yet.");
}
</code></pre>

<h1>}</h1>

<h1>i have to find the error</h1>

<p>SEVERE: error during the dispatch of event: FireEvent [org.openymsg.network.event.SessionListEvent to:null from:null message:null timestamp:0 status:0 list type:Friends size:2 LIST]
java.lang.UnsupportedOperationException: Not supported yet.
        at yahoomessangerbot.MySessionListener.dispatch(MySessionListener.java:131)
        at org.openymsg.network.EventDispatcher.runEventNOW(EventDispatcher.java:133)
        at org.openymsg.network.EventDispatcher.run(EventDispatcher.java:114)</p>
