Cant do dependency injection of EJB3 stateless bean from a servlet in Weblogic 10.3.6

[Anirban Chowdhury]

I tried all day today to inject my EJB3 from a serlet. Unfortunately couldn't get it to work.
Weblogic version : 10.3.6


**My EJBs**

  @Remote

      public interface TestFirstStateless {

	void sayHello();
    } 


     @Stateless(mappedName="testFirstStatelessBean")
     @PermitAll
     public class TestFirstStatelessBean implements TestFirstStateless{

	@Override
	public void sayHello() {
			System.out.println("hi there!!");
		
	}

     }

**My Servlet**

  public class DipInEJBServlet extends HttpServlet {

       @EJB(mappedName="testFirstStatelessBean#com.service.stateless.TestFirstStateless")
	TestFirstStateless testFirstStatelessBean;


	private static Context ctx; 

	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
	throws ServletException, IOException {
		// TODO Auto-generated method stub
		//super.doGet(req, resp);
		System.out.println("getting there");
		if(testFirstStatelessBean == null){
			try {
				System.out.println("looking up");
				testFirstStatelessBean = (TestFirstStateless) ctx.lookup("testFirstStatelessBean#com.service.stateless.TestFirstStateless");
			} catch (NamingException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		testFirstStatelessBean.sayHello();
	}

        static

	{
		Properties env = new Properties();
		  env.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
		env.put(Context.SECURITY_PRINCIPAL,"admin");
		env.put(Context.SECURITY_CREDENTIALS,"Metallica@789");
		env.put(Context.PROVIDER_URL,"t3://localhost:7001");
		try {
			ctx = new InitialContext(env);
		} catch (NamingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		System.out.println("Initial Context created");
		

	}

I have an application.xml and a web.xml but no ejb-jar.xml or other deployment descriptors as I will be using only annotations as of now.

Now, I can do a perfect lookup using the specified JNDI name, however the DI doesn't happen.
I have tried with :@EJB(mappedName="testFirstStatelessBean") as well on the servlet. Even that doesn't work. Please let me know what can be done here?