[jboss-user] [Beginners Corner] - Simple SessionBean --- ClassCastException

[bronks]

Hi!

I am using the JBossIDE 1.5.1 and JBossAS 4.04.

I have coded a simple SessionBean and a Servlet. Please take a look at the code below.

The deployment of the ejb.jar seems to be ok: [ProxyFactory] Bound EJB Home 'Hello' to jndi 'ejb/Hello'

When i am accessing the servlet i am getting an  java.lang.ClassCastException in the servlet at line marked with ">>>>>>>".

I have spent 4 hour and can not find a mistake.

Please take a look at my code an tell me what is wrong.

Thanks

Bronks


package testProjekt;
  | 
  | import java.rmi.RemoteException;
  | 
  | import javax.ejb.EJBException;
  | import javax.ejb.SessionBean;
  | import javax.ejb.SessionContext;
  | 
  | import javax.ejb.CreateException;
  | 
  | /**
  |  * @ejb.bean name="Hello"
  |  *           display-name="Name for Hello"
  |  *           description="Description for Hello"
  |  *           jndi-name="ejb/Hello"
  |  *           type="Stateless"
  |  *           view-type="remote"
  |  */
  | public class HelloBean implements SessionBean {
  | 
  | 	public HelloBean() {
  | 		super();
  | 		// TODO Auto-generated constructor stub
  | 	}
  | 
  | 	public void setSessionContext(SessionContext ctx)
  | 		throws EJBException,
  | 		RemoteException {
  | 		// TODO Auto-generated method stub
  | 
  | 	}
  | 
  | 	public void ejbRemove() throws EJBException, RemoteException {
  | 		// TODO Auto-generated method stub
  | 
  | 	}
  | 
  | 	public void ejbActivate() throws EJBException, RemoteException {
  | 		// TODO Auto-generated method stub
  | 
  | 	}
  | 
  | 	public void ejbPassivate() throws EJBException, RemoteException {
  | 		// TODO Auto-generated method stub
  | 
  | 	}
  | 
  | 	/**
  | 	 * Default create method
  | 	 * 
  | 	 * @throws CreateException
  | 	 * @ejb.create-method
  | 	 */
  | 	public void ejbCreate() throws CreateException {
  | 		// TODO Auto-generated method stub
  | 	}
  | 
  | 	/**
  | 	 * Business method
  | 	 * @ejb.interface-method view-type="remote" 
  | 	 * @generated
  | 	 */
  | 	public String hello() {
  | 		return new String("Hello ...!");
  | 	}
  | }
  | 

  | package web;
  | 
  | import java.io.IOException;
  | import java.io.PrintWriter;
  | 
  | import javax.naming.InitialContext;
  | import javax.servlet.ServletConfig;
  | import javax.servlet.ServletException;
  | import javax.servlet.http.HttpServlet;
  | import javax.servlet.http.HttpServletRequest;
  | import javax.servlet.http.HttpServletResponse;
  | 
  | import testProjekt.*;
  | 
  | 
  | /**
  | * @web.servlet
  | * name="testservlet"
  | * display-name="Test Servlet"
  | * description="Servlet for testing"
  | *
  | * @web.servlet-mapping
  | * url-pattern="/testservlet"
  | *
  | */
  | 
  | public class TestServlet extends HttpServlet implements
  | javax.servlet.Servlet{
  | 	
  | 
  | 
  | 	public TestServlet() {
  | 		super();
  | 		// TODO Auto-generated constructor stub
  | 	}
  | 
  | 	public void init(ServletConfig config) throws ServletException {
  | 		super.init(config);
  | 		
  | 	}
  | 
  | 	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
  | 		throws ServletException,
  | 		IOException {
  | 		
  | 		PrintWriter out = resp.getWriter();
  | 		out.println("Executing the servlet");
  | 			
  | 		try {
  | 			InitialContext context = new InitialContext(System.getProperties());
  | >>>>>>>    	HelloHome home = (HelloHome) context.lookup(HelloHome.JNDI_NAME);
  | 
  | 			Hello bean = home.create();
  | 			String testtext = bean.hello();
  | 			out.println(testtext);
  | 		}catch(Exception e){e.printStackTrace();}
  | 	}
  | }

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