Respected Sir/Mam

I m using jdk1.5 and jboss4.0.2 Here is my code File Name-sunLoginAction.java

/*
 * sunLoginAction.java
 *
 * Created on March 18, 2012, 12:31 PM
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package com.myapp.struts;

import com.myapp.struts.ejb.EjbHome;
import com.myapp.struts.ejb.EjbRemote;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.rmi.PortableRemoteObject;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

/**
 *
 * @author Administrator
 */
public class sunLoginAction extends Action {

    /** Creates a new instance of sunLoginAction */
    public sunLoginAction() {
    }
    private static final String SUCCESS = "success";

    public ActionForward execute(ActionMapping mapping,ActionForm form,HttpServletRequest request,HttpServletResponse response)throws Exception
    {
        String formsg="success";
        sunLoginForm actionForm=null;
        if(form!=null)
        {
            actionForm=(sunLoginForm)form;
            System.out.println("Simple Message in Actionssss !!");

            try {
                 /*Properties env = new Properties();
       env.setProperty("java.naming.factory.initial", 
                 "org.jnp.interfaces.NamingContextFactory");
       env.setProperty("java.naming.provider.url",  "localhost:1099");
       env.setProperty("java.naming.factory.url.pkgs",  "org.jboss.naming");*/
            Context ic = new InitialContext();
            Object obj = ic.lookup("com/myapp/struts/ejb/Ejb");
            System.out.println("Cursor Here !!!! location 1\n");
            System.out.println(obj+"\t"+EjbHome.class);
            EjbHome home = (EjbHome)PortableRemoteObject.narrow(obj, EjbHome.class);
            System.out.println("Cursor Here !!!! location 2");
            EjbRemote objRm = home.create();
            String msg=objRm.stringMsg();
            System.out.println(msg);

        } catch ( Exception e ) {
            e.printStackTrace();
            formsg="failure";
        }
            //Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

        }
        return mapping.findForward(formsg);
    }
    }

//END sunLoginAction.java File

//Start sunLoginForm.java

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.myapp.struts;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;

/**
 *
 * @author Administrator
 */
public class sunLoginForm extends org.apache.struts.action.ActionForm {

    private String name;
    private int number;
    private String userName="";

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }
    /**
     * @return
     */
    public String getName() {
        return name;
    }

    /**
     * @param string
     */
    public void setName(String string) {
        name = string;
    }

    /**
     * @return
     */
    public int getNumber() {
        return number;
    }

    /**
     * @param i
     */
    public void setNumber(int i) {
        number = i;
    }

    /**
     *
     */
    public sunLoginForm() {
        super();
        // TODO Auto-generated constructor stub
    }

    /**
     * This is the action called from the Struts framework.
     * @param mapping The ActionMapping used to select this instance.
     * @param request The HTTP Request we are processing.
     * @return
     */

}

//END of File sunLoginForm.java

//Start Here EJBBean.java File

package com.myapp.struts.ejb;

import javax.ejb.SessionBean;
import javax.ejb.SessionContext;

/**
 *
 * @author Administrator
 */
public class EJBBean implements SessionBean{

     private SessionContext context;
    public void ejbCreate()
    {

    }
    public void ejbActivate() throws javax.ejb.EJBException, java.rmi.RemoteException {
    }

    public void ejbPassivate() throws javax.ejb.EJBException, java.rmi.RemoteException {
    }

    public void ejbRemove() throws javax.ejb.EJBException, java.rmi.RemoteException {
    }

     public void setSessionContext(SessionContext aContext) {
        context = aContext;
    }
    public String stringMsg()
    {
        String msg="";
        msg="This is simple program in java language !!";
        return msg;
    }
}

//END of File EJBBean.java

//Start Here EjbHome.java File
/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.myapp.struts.ejb;

import java.rmi.RemoteException;
import javax.ejb.*;

/**
 *
 * @author Administrator
 */
public interface EjbHome extends EJBHome{
    EjbRemote create() throws javax.ejb.CreateException,RemoteException;

}

//END of file EjbHome.java

//Start File EjbRemote.java From Here

 /*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.myapp.struts.ejb;

import java.rmi.RemoteException;
import javax.ejb.*;

/**
 *
 * @author Administrator
 */
public interface EjbRemote extends EJBObject{
    public String stringMsg() throws RemoteException;

}

//END of File EjbRemote.java

//Start ejb-jar.xml file under WebApplication4.jar/META-INF folder

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-jar PUBLIC '-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN' 'http://java.sun.com/dtd/ejb-jar_2_0.dtd'>

 <ejb-jar>
    <enterprise-beans>
    <session>
       <ejb-name>EJBBean</ejb-name>
      <home>com.myapp.struts.ejb.EjbHome</home>
      <remote>com.myapp.struts.ejb.EjbRemote</remote>
      <ejb-class>com.myapp.struts.ejb.EJBBean</ejb-class>
      <session-type>Stateless</session-type>
      <transaction-type>Bean</transaction-type>
    </session>
  </enterprise-beans>


   <assembly-descriptor>

   </assembly-descriptor>

</ejb-jar>

//END of file ejb-jar.xml

//Start of file jboss.xml under WebApplication4.jar/META-INF folder

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-jar PUBLIC '-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN' 'http://java.sun.com/dtd/ejb-jar_2_0.dtd'>

 <jboss>

   <enterprise-beans>

      <session>
         <ejb-name>EJBBean</ejb-name>
         <jndi-name>com/myapp/struts/ejb/Ejb</jndi-name>
      </session>

   </enterprise-beans>

   <resource-managers>
   </resource-managers>

</jboss>

//END OF file jboss.xml

//Start of file application.xml under WebApplication4.ear/META-INF folder

<?xml version="1.0" encoding="ISO-8859-1"?>

<application>
    <display-name>WebApplication4</display-name>
    <module>
    <web>
        <web-uri>WebApplication4.war</web-uri>
        <context-root>/WebApplication4</context-root>
    </web>
    </module>

    <module>
        <ejb>WebApplication4.jar</ejb>
    </module>

</application>

//End of file application.xml

//When i run this application,ClassCastException has occurred,How to solve this problem.