requested resource not available

hey
i have created a jsp form for logging in a user and have mapped it to a servlet
i have given the appropriate mappings in web.xml as well
but when i click the submit button in my jsp page i get the following error

type Status report

message

descriptionThe requested resource () is not available.
the following is my jsp file

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
    
<title>LOGIN FORM</title>

if (!checkLength(userName)) {
  errors[errors.length] = "You must enter a username.";
 }

if (!checkLength(password)) {
  errors[errors.length] = "You must enter a password.";
 }

if (errors.length > 0) {
  reportErrors(errors);
  return false;
 }

return true;
}

function checkLength(text, min, max){
 min = min || 1;
 max = max || 10000;

if (text.length < min || text.length > max) {
  return false;
 }
 return true;
}

function reportErrors(errors){
 var msg = "There were some problems...\n";
 var numError;
 for (var i = 0; i<errors.length; i++) {
  numError = i + 1;
  msg += "\n" + numError + ". " + errors[i];
 }
 alert(msg);
 
 
 
}
></script>
</head>
<body>
<h1>LOGIN SCREEN</h1>
<h2>PLEASE ENTER VALID USERNAME AND PASSWORD</h2>
<form method="post" 
    onsubmit="return validate(this);" action="/auth" >

Username: <input type="text" name="Username" size="20"><br/>
 <br>
 <br>
 Password: <input type="password" name="Password" size="20"><br/>
<br>
<br>
<input type="submit" value="Submit" >
 <input type="reset" value="Reset Form">
 <br>
 <br>
 <b><i><u>NEW USER?</u></i></b>  <a href="http://localhost:8080/WebApplication1/newhtml1.html" rel="nofollow">REGISTER HERE</a>
 
 
 
</form>
</body>
</html>

this is the servlet i wrote

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.sql.*;
import org.omg.PortableInterceptor.SYSTEM_EXCEPTION;

/**
 *
 * @author Shanoj
 */
public class auth extends HttpServlet {
    
    
     private ServletConfig config;
    @Override
     public void init(ServletConfig config)
     throws ServletException{
     this.config=config;
         }

/**
     * 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 auth</title>");            
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet auth at " + request.getContextPath() + "</h1>");
            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 {
        PrintWriter out = response.getWriter();
        String username="";
        String password="";
        
        
        
        try
        {
            
          Class.forName("sun.jdbc.odbc.JdbcOdbc");
          Connection con=DriverManager.getConnection("jdbc:odbc:mydsn");
          Statement st=con.createStatement();
          String sql="select Userid,Password from Userinfo";
          ResultSet rs=st.executeQuery(sql);
          while(rs.next())
          {
             username=rs.getString("Userid");
             password=rs.getString("Password");
             
          }
          rs.close();
          st.close();
        }
          
          catch(SQLException se)
          {
           
             System.out.println("exception occurred" +se);    
          }
        
        catch(ClassNotFoundException ce)
        {
         
            System.out.println("exception occurred" +ce);  
            
        }
              
        
        if(username.equals(request.getParameter("Username"))&&password.equals(request.getParameter("Password")))
                {
                    
                     out.println("Authenticated");
              
              
                }
        
        
        else
            
        {
            
              out.println("not authenticated");   
        } 
            
            
        }
    }

and this the web.xml file

can anyone please help me out with this error ..i tried many solutions but the error persists

Value of action attribute in your form tag should be auth & not /auth. This should solve.

Anurag Verma wrote:Value of action attribute in your form tag should be auth & not /auth. This should solve.

Completely incorrect!

The action should be a server-relative URL beginning with the context path: ${pageContext.request.contextPath}/auth

Apparently that was the problem..adding context path to the action Url did the trick...thanks a lot guys