Error LlistenerStart

[Bahman Robin]

Hi Guys,
I understand there are lots of Tomcat listenerStart error on the web happening in different situations. Might be it's due to the lack of stack trace.
Mine is one of them, might be there is a tiny mistake in somewhere, I don't know by now. I want to try it here too. This is the situation:
I was testing ServletContextListener then noticed the status of my web app directory (ListenerTest) showing on tomcat manager is "false".
Server log shows: error listenerStart.

web dir : webapps->ListenerTest->WEB-INF->web.xml, classes -> com -> example ->Dog.class, ListenerTester.class, MyServletContextListener.class.
CLASSPATH : /library/Tomcat6/lib/(servlet-api.jar)

Dog.class:

package com.example;
public class Dog {
	private String breed;
	public Dog(String breed) {
		this.breed = breed;
		
	}
	public String getBreed() {
		return breed;
	}

}

--------
ListenerTester class:

package com.example;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class ListenerTester extends HttpServlet{
	public void doGet (HttpServletRequest request,  HttpServletResponse response)
	                    throws IOException, ServletException {
		 response.setContentType("test/html");
		 PrintWriter out = response.getWriter();
		 out.println("test context attribute set by listener<br>");
		 out.println("<br>");
		 Dog dog = (Dog) getServletContext().getAttribute("dog");		
		 out.println("dog's breed is: "+ dog.getBreed());
	}

}

--------
MyServletContextListener class:

package com.example;
import javax.servlet.*;
public class MyServletContextListener implements ServletContextListener{
	  public void contextInitialized(ServletContextEvent event){
		  ServletContext sc = event.getServletContext();
		  String dogBreed = sc.getInitParameter("breed");
		  Dog d = new Dog(dogBreed);
		  sc.setAttribute("dog", d);
	  }
	  
	  public void contextDestroyed(ServletContextEvent event){	
	  }
}

------------
web.xml:

<web-app xmlns="http://java.sun.com/xml/ns/javaee"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
   version="2.5"> 
  <servlet>
     <servlet-name>ListenerTester</servlet-name>
     <servlet-class>com.example.ListenerTester</servlet-class>
  </servlet>
  <servlet>
    <servlet-name>ee</servlet-name>
    <servlet-class>com.example.Te</servlet-class>
  </servlet>
  <servlet-mapping>
      <servlet-name>ee</servlet-name>
      <url-pattern>/re</url-pattern>
  </servlet-mapping>
  <servlet-mapping>
      <servlet-name>ListenerTester</servlet-name>
      <url-pattern>/ListenTest.do</url-pattern>
  </servlet-mapping>  
  <context-param>
    <param-name>breed</param-name>
    <param-value>Great Dane</param-value>
  </context-param>
 <listener>
    <listener-class>
         com.example.MyServletContextListener
    </listener-class>
  </listener> 
</web-app>

I was running it on MAC OS. I appreciate your help.

[Frits Walraven]

Hi Bahman,

Thanks for starting a new thread. Please use the code tags when posting code, that makes it easier to read.

I don't see any obvious mistakes. You can try to things: deploy the same web-app on another server (Tomcat5.5, Jboss, Glasfish) and the other option is to make the .war file by hand, just to verify that the structure is not the problem (war by hand)

Regards,
Frits

[Bahman Robin]

It works now.
Thanks Frits for your help.
I created a war file and that's it.
But I still do not know what exactly the container was missing during running the test before creating war file.
cheers,
Bahman