buongiorno, sto impazzendo con una servlet che devo implementare. in sostanza non mi reindirizza alle pagine jsp che ho scritto, questo è il codice, qualcuno per cortesia potrebbe aiutarmi? grazie anticipatamente

package amm.ciciro.servlets;
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/




import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.ArrayList;
import amm.ciciro.classi.Compratore;
import amm.ciciro.classi.CompratoreFactory;
import amm.ciciro.classi.Venditore;
import amm.ciciro.classi.VenditoreFactory;
import javax.servlet.http.HttpSession;
import javax.servlet.annotation.WebServlet;
/**
*
* @author Ciro
*/
@WebServlet(name = "Login", urlPatterns = {"/login.html"})
public class Login extends HttpServlet {


/**
* Processes requests for both HTTP <code>GET</code> and <code>POST</code>
* methods.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");

HttpSession session = request.getSession(true);


if(request.getParameter("Submit") != null)
{
String username = request.getParameter("Username");
String password = request.getParameter("Password");
ArrayList<Compratore> compratoreList = CompratoreFactory.getInstance().getCompratoreList( );
for(Compratore c : compratoreList)

{
if(c.getUsername().equals(username)&&
c.getPassword().equals(password))
{

request.getRequestDispatcher("cliente.jsp").forwar d(request,response);
}
}
}
else {
request.getRequestDispatcher("login.jsp").forward( request, response);
}

if(request.getParameter("Submit") != null)
{
String username = request.getParameter("Username");
String password = request.getParameter("Password");
ArrayList<Venditore> venditoreList = VenditoreFactory.getInstance().getVenditoreList();
for(Venditore v : venditoreList)

{
if(v.getUsername().equals(username)&&
v.getPassword().equals(password))
{

request.getRequestDispatcher("venditore.jsp").forw ard(request,response);
}
}
}
else {
request.getRequestDispatcher("login.jsp").forward( request, response);
}

}


// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
/**
* Handles the HTTP <code>GET</code> method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}


/**
* Handles the HTTP <code>POST</code> method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}


/**
* Returns a short description of the servlet.
*
* @return a String containing servlet description
*/
@Override
public String getServletInfo() {
return "Short description";
}// </editor-fold>


}