Problem of servlet

Question

HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
java.lang.NullPointerException
     com.j3ltd.test.web.TestStatelessEJBServlet.doGet(TestStatelessEJBServlet.java:33)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
     org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
please look at my servlet:
package com.j3ltd.test.web;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.naming.*;
import java.io.*;
import com.j3ltd.test.ejbs.*;
public class TestStatelessEJBServlet extends HttpServlet {
     private TestStateless statelessBean;
     public void init()throws ServletException {
          try {
               Context context = new InitialContext();
               statelessBean = (TestStateless)context.lookup("TestStatelessEJB/remote");
          }catch (NamingException e){
               e.printStackTrace();
     public void doPost(HttpServletRequest req, HttpServletResponse resp)
     throws ServletException,
     IOException {
doGet(req, resp);
     public void doGet(HttpServletRequest req, HttpServletResponse resp)
     throws ServletException,
     IOException {
PrintWriter writer = resp.getWriter();
writer.write("The stateless bean returned this string: " + statelessBean.testBean());
when i try to run prompt up the above message http status 500.
anyone can help me, thanks.

Answer 1

Is TestStatelessEJBServlet.java:33 the following?
writer.write("The stateless bean returned this string: " + statelessBean.testBean());If so, that would seem to indicate that statelessBean variable is null at that point.
You may want to add
if (statelessBean == null) System.out.println(:statelessBean is null");
[/code[
to verify if it is so. Yon can try adding the line just after creation in init and before writer.write call...