Clash Royale CLAN TAG#URR8PPP

The origin server did not find a current representation for the target resource or is not willing to disclose that one exists. Error when starting app

package controller;

import domain.PersonService;
import domain.ProductService;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

@WebServlet("/Controller")
public class Controller extends HttpServlet
private static final long serialVersionUID = 1L;

private PersonService model = new PersonService();
private ProductService productModel = new ProductService();
private ControllerFactory controllerFactory = new ControllerFactory();
private BlogServer server = new BlogServer(model);

public Controller()
super();


protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException
processRequest(request, response);


protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException
processRequest(request, response);


protected void processRequest(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException
RequestHandler handler = null;
String action = request.getParameter("action");
String destination = "index.jsp";
if (action != null)
try
handler = controllerFactory.getController(action, model, productModel, server);
destination = handler.handleRequest(request, response);

catch (NotAuthorizedException exc)
List<String> errors = new ArrayList<String>();
errors.add(exc.getMessage());
request.setAttribute("errors", errors);
destination="index.jsp";


if(handler != null && handler instanceof ASyncRequestHandler)

response.setContentType("application/JSON");
response.getWriter().write(destination);
else
RequestDispatcher view = request.getRequestDispatcher(destination);
view.forward(request, response);




When i run my application i get the error:

The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.

My welcome file is set on the Controller.

Controller

Controller

Can somebody help me? I think that there is something going wrong in the Controller class but i don't know what.

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