Issues Related to the creation of custom login page.

I was just following the steps given in FMW Dev Guide to create a custom login page and figured out that the DEV guide is not up-to-date.
The login method that is given in the guide is as follows:

public String doLogin() {
    String un = _username;
    byte[] pw = _password.getBytes();
    FacesContext ctx = FacesContext.getCurrentInstance();
    HttpServletRequest request = (HttpServletRequest)ctx.getExternalContext().getRequest();
    CallbackHandler handler = new SimpleCallbackHandler(un, pw);
    try {
         Subject mySubject = Authentication.login(handler);
         ServletAuthentication.runAs(mySubject, request);
         ServletAuthentication.generateNewSessionID(request);
         String loginUrl = "/adfAuthentication?success_url=/faces" + ctx.getViewRoot().getViewId();
         HttpServletResponse response = (HttpServletResponse)ctx.getExternalContext().getResponse();
         sendForward(request, response, loginUrl);
    } catch (FailedLoginException fle) {
         FacesMessage msg = new FacesMessage(FacesMessage.SEVERITY_ERROR, "Incorrect Username or Password", "An incorrect Username or Password" + " was specified");
         ctx.addMessage(null, msg);
    } catch (LoginException le) {
        reportUnexpectedLoginError("LoginException", le);
    }
    return null;
 }

However, I am using JDev 11.1.1.4, and now seems like SimpleCallbackHandler is deprecated.
I tried to import the libraries required to import this class but I was getting deployment errors after making those changes.

Then, I came around this blog by Andrejus:
http://andrejusb.blogspot.com/2010/11/things-you-must-know-about-adf-faces.html

After going through this post, figured out that now we need to use URLCallbackHandler instead of SimpleCallbackHandler, and the above method should look like :

  public String doLogin() {
      String un = _username;
      byte[] pw = _password.getBytes();
      FacesContext ctx = FacesContext.getCurrentInstance();
      HttpServletRequest request = (HttpServletRequest)ctx.getExternalContext().getRequest();
      try {
          Subject subject = Authentication.login(new URLCallbackHandler(un, pw));
          weblogic.servlet.security.ServletAuthentication.runAs(subject, request);
         
          String loginUrl = "/adfAuthentication?success_url=/faces" + ctx.getViewRoot().getViewId();
          HttpServletResponse response = (HttpServletResponse)ctx.getExternalContext().getResponse();
          sendForward(request, response, loginUrl);
      } catch (FailedLoginException fle) {
          FacesMessage msg = new FacesMessage(FacesMessage.SEVERITY_ERROR, "Incorrect Username or Password", "An incorrect Username or Password was specified");
          ctx.addMessage(null, msg);
      } catch (LoginException le) {
          reportUnexpectedLoginError("LoginException", le);
      }
      return null;
  }

However, to make this work, we need to include 'WebLogic 10.3 Remote-Client' library to our project. This library points to weblogic.jar and is required for the above method to run successfully.

JDev Release 11.1.1.4