2 Replies Latest reply on Aug 18, 2006 9:39 AM by Bronks Private

    Simple SessionBean --- ClassCastException

    Bronks Private Newbie

      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();}
       }
      }