Invocation de service web

Salut

je créer une application web qui contient mon service web

et je créer une autre application web pour l'invocation de methodes de cette service web a partie servlet mais le pbm l a des erreurs ds ma code servlet /
Code:
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/*
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 * and open the template in the editor.
 */
package pqtest;
 
 
import java.io.IOException;
import java.io.PrintWriter;
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 javax.xml.ws.WebServiceRef;
import pqtAccesMonService.MonService_Service;
import pqtAccesMonService.*;
 
 
/**
 *
 * @author GHENADRA
 */
@WebServlet(name = "NewServlet", urlPatterns = {"/NewServlet"})
public class NewServlet extends HttpServlet {
    @WebServiceRef(wsdlLocation = "WEB-INF/wsdl/localhost_8080/MonServeur/MonService.wsdl")
    private MonService_Service service;
 
    /**
     * 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");
        PrintWriter out = response.getWriter();
        try {
            /* TODO output your page here. You may use following sample code. */
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet NewServlet</title>");            
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet NewServlet at " + request.getContextPath() + "</h1>");
 
            java.lang.String name="";
          //  port.hello(name);
           //---------------Ici le probleme 
 
          //  quelle est le code Pour afficher le resultat de methode service web
 
 
 
 
 
 
 
 
            out.println("</body>");
            out.println("</html>");
        } finally {            
            out.close();
        }
    }
 
    // <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>
 
   public String hello(java.lang.String name) {
        pqtAccesMonService.MonService port = service.getMonServicePort();
        return port.hello(name);
    }
}