error in sending image from applet to servlet

[Hare Shiva]

i have following applet code that i found in internet and modified as required

package Upload;

import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
import java.applet.Applet;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.imageio.ImageIO;

/**
 *
 * @author Computer
 */
public class appFinal extends Applet {

    /**
     * Initialization method that will be called after the applet is loaded
     * into the browser.
     */
    @Override
    public void init() {
       
        File file = new File("C:\\Users\\Computer\\Desktop\\client\\screenlg18.jpg");
        try {
            BufferedImage image = ImageIO.read(file);
            sendToServletOne(image);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
    // TODO overwrite start(), stop() and destroy() methods
    
     public void sendToServletOne(BufferedImage bi) throws Exception{
 
	        try {
	            System.out.println("Sending the image data");
	            String urlPath = "http://localhost:8080//test//Final";
	            URL url = new URL(urlPath);
	            URLConnection conn = url.openConnection();
	          
	            if (conn instanceof HttpURLConnection)
	            {
	            ((HttpURLConnection)conn).setRequestMethod("POST");
	            }
	            else
	            {
	            throw new Exception("this connection is NOT an HttpUrlConnection connection");
	            }
	            
 
	            conn.setUseCaches(false);
	            conn.setDefaultUseCaches (false);
	            conn.setDoOutput(true);
	            conn.setDoInput(true);	            
			    conn.setRequestProperty ("Content-Type", "application/octet-stream");		 
			    conn.connect();
			    
	    
	            OutputStream out = conn.getOutputStream();
	            InputStream ins = conn.getInputStream();		
	            
				ByteArrayOutputStream os = new ByteArrayOutputStream();	
				JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(os);	
				encoder.encode(bi);	
				byte[] outBuffer =  os.toByteArray();
				if(outBuffer != null)
					System.out.println("in send to Servlet  "+outBuffer.length);
				
				InputStream in = new ByteArrayInputStream(outBuffer);
				
	            
			    
			  int BUF_SIZE = 512;
			  int bytesRead = 0;
			  
			  byte[] buffer = new byte[BUF_SIZE];
			  
			 FileOutputStream fos = new FileOutputStream("C:\\Users\\Computer\\Desktop\\client\\screen123.jpg");
			     while ((bytesRead = in.read(buffer, 0, BUF_SIZE)) > -1) {
			    	fos.write(buffer, 0, bytesRead);
			      out.write(buffer, 0, bytesRead);
			      System.out.println("client while");
                              System.out.println("count "+bytesRead);
			  }
			  out.flush();
			  out.close();  
	        }catch(Exception e) {
	        	
	        	e.printStackTrace();
	        	System.out.println(e.getMessage());
	        }
	        
	  }
}

and the servlet part

package servlet;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.io.FilenameUtils;

/**
 *
 * @author Computer
 */
package servlet;

import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.net.URLDecoder;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Computer
 */
public class Final extends HttpServlet {

    /** 
     * 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 {
            System.out.println("Here");
            
            System.out.println("in Cam servlet do post");
	System.out.println("getting the image from applet");
 
	System.out.println("Request Content Type "+request.getContentType());
	System.out.println("Request Content Type "+request.getContentLength());
	//resp.setContentType(req.getContentType());
    File filename = new File("C:\\Users\\Computer\\Desktop\\client\\screen.jpg");
    FileOutputStream out = new FileOutputStream(filename);
    InputStream in = request.getInputStream();
    
    byte[] buf = new byte[512];
    int nread = 0, total_read = 0;
 
    while ((nread =in.read(buf))>-1) {
        System.out.println("Count");
        total_read += nread;
        out.write(buf, 0, nread);
        
    }
    System.out.println("bytes read " + total_read);
    out.close();
    in.close();
            
            
            
            
            
            
            
            
            
            
            
            
            
        } 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>
}

i receive 0 bytes in servlet.Anyone please help me.