[jboss-user] [Tomcat, HTTPD, Servlets & JSP] - Exception in the Lookup Operation

[Luke2006]

Hi everybody!
I'm new at JBoss so I'm created a simply web application to begin, but I've encountered a strange Exception: 
javax.servlet.ServletException: Lookup of java:/comp/env/ failed -- java.lang.ClassCastException
	saluti.web.HolaServlet.init(HolaServlet.java:49)
	org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
	org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
	org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
	org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
	org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
	java.lang.Thread.run(Unknown Source)


My application asks for a sentence and display it on the screen with some changes. Here is the code.
HOLABEAN.JAVA:
package saluti.ejb;

import java.rmi.RemoteException;

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

import javax.ejb.CreateException;

/**
 * @ejb.bean name="Hola"
 *           display-name="Name for Hola"
 *           description="Description for Hola"
 *           jndi-name="ejb/Hola"
 *           type="Stateless"
 *           view-type="remote"
 */
public class HolaBean implements SessionBean {

	public HolaBean() {
		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"
	 */
	public String passer(String fraseInit) {
		fraseInit=fraseInit+" + 'Never give up!!'";
		return fraseInit;
	}
}

HOLASERVLET.JAVA:
package saluti.web;

import javax.servlet.http.HttpServlet;

import javax.servlet.ServletException;
import javax.servlet.ServletConfig;
import java.io.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import saluti.interfaces.*;
import javax.rmi.*;
import java.util.*;
import javax.naming.*;

/**
 *
 * @web.servlet              name="Hola"
 *                           display-name="Hola Servlet"
 *                           description="It's change the sentence"
 * @web.servlet-mapping      url-pattern="/Hola"
 * 
 * @web.ejb-ref
 * 		        name="ejb/Hola"
 * 				type="Session"
 * 				home="saluti.interfaces.HolaHome"
 * 				remote="saluti.interfaces.Hola"
 * 				description="Reference to the Hola EJB"
 * 
 * @jboss.ejb-ref-jndi
 * 				ref-name="ejb/Hola"
 * 				ndi-name="ejb/Hola"
 * 
 */
public class HolaServlet extends HttpServlet {

	private HolaHome home;	
	
	public HolaServlet() {
		super();
		// TODO Auto-generated constructor stub
	}

	public void init(ServletConfig config) throws ServletException {
		try {
			Context context = new InitialContext();
			Object ref = context.lookup("java:/comp/env/ejb/Hola");
			home = (HolaHome) PortableRemoteObject.narrow(ref, HolaHome.class);
			} catch (Exception e) {
			throw new ServletException("Lookup of java:/comp/env/ failed -- "+e);
			}		
	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response)
		throws ServletException,
		IOException {
		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		
		out.println("");
		out.println("E divenne...");
		out.println("");
		out.println("");
		out.println("<h1>");
		out.println("Magggggia");
		out.println("</h1>");
		
		try {
			Hola bean = home.create();
			String value = request.getParameter("inizio");
			String newValue = null;
			if (value!=null)
				newValue = bean.passer(value);
			bean.remove();
			out.println("");
			out.print("Ed ecco il risultato: ");
			out.println(newValue);
			out.println("");
			} catch (Exception e) {
			out.println(e.getMessage());
			e.printStackTrace(out);
			} finally {
			out.println("");
			out.close();
		}
	}//doPost

}//HolaServlet

INDEX.HTML:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">


Inizi di Web Service




  QUESTO E' L'INDEX DEL MIO 
    PICCOLO WEB SERVICE....DA QUI...COMINCIA TUTTO........ 
  &nbsp;
  Inserisci la frase
  
  
     
     
	 
  




Thanks in advance for everything!!

Luke

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