Uergente! doPost com problema

protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        
        out.println("<br>usuario: "+request.getParameter("usuario"));
        out.println("<br>senha: "+request.getParameter("senha"));        

        out.close();
    }
    
    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);
    }

<form name="login" action="inicio" method="post" enctype="multipart/form-data">
              <table>
                  <tr>
                      <td>Usuário: </td>
                      <td><input type="text" name="usuario" value="" /></td>
                  </tr>
                  <tr>
                      <td>Senha: </td>
                      <td><input type="password" name="senha" value="" /></td>
                  </tr>
                  <tr>
                      <td colspan="2"><center><input type="submit" value="Login" name="login" /></center></td>
                  </tr>
              </table>
          </form>