Ao clicar no submit a pagina web descereve um erro:
java.lang.RuntimeException:
at br.com.jairo.controle.Logar.(Logar.java:1)

Servlet Logar está criado como segue abaixo

package br.com.jairo.controle;

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;

/**
*

• @author Jairo
  */
  public class Logar extends HttpServlet {

  /**

  • Processes requests for both HTTP GET and POST
  • 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”);
    try ( PrintWriter out = response.getWriter()) {
    / TODO output your page here. You may use following sample code. */
    out.println("");
    out.println("");
    out.println("");
    out.println(“Servlet Logar”);
    out.println("");
    out.println("");
    out.println(“

    Usuario Logado " + request.getContextPath() + “

    ”);
    out.println(”");
    out.println("");
    }
    }

  //
  /**

  • Handles the HTTP GET 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 POST 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”;
    }//

}

No web.xml está da seguinte forma:

?xml version=“1.0” encoding=“UTF-8”?>

web-app version=“3.1” xmlns=“<a href="http://xmlns.jcp.org/xml/ns/javaee">http://xmlns.jcp.org/xml/ns/javaee</a>” xmlns:xsi=“<a href="http://www.w3.org/2001/XMLSchema-instance">http://www.w3.org/2001/XMLSchema-instance</a>” xsi:schemaLocation=“<a href="http://xmlns.jcp.org/xml/ns/javaee">http://xmlns.jcp.org/xml/ns/javaee</a> <a href="http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd">http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd</a>”>

servlet>

servlet-name>Logar

servlet-class>br.com.jairo.controle.Logar

servlet>

servlet-mapping>

servlet-name>Logar

url-pattern>/Logar

servlet-mapping>

session-config>

session-timeout>

30

session-timeout>

session-config>

web-app>

na pagina JSP está da seguinte forma:

@taglib uri=“<a href="http://java.sun.com/jsp/jstl/core">http://java.sun.com/jsp/jstl/core</a>” prefix=“c” %>

c:import url=“cabecalho.jsp”/>

form action=“Logar” method=“get” id=“formLogar”>

table border=“1”>

tr>

td colspan=“2” align=“center”>

Acesso ao Sistema

Digite Usuario e Senha

Alguem pode me ajudar a solucionar este problema