ClientServlet.java

package com.example;

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.List;

@WebServlet(name = "ClientServlet", urlPatterns = {"/ClientServlet"})
public class ClientServlet extends HttpServlet {

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String nombres = request.getParameter("nombres");
        String apellidos = request.getParameter("apellidos");
        String nacimiento = request.getParameter("nacimiento");

        String email1 = request.getParameter("email1");
        String email2 = request.getParameter("email2");
        String email3 = request.getParameter("email3");
        String email4 = request.getParameter("email4");

        log("### DEBUG ###");

    }

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        processRequest(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        processRequest(req, resp);
    }

    @Override
    public String getServletInfo() {
        return "Short description";
    }

}