Problem in Download Servlet (Urgent)

Question

Hai
i am using an servlet to download files.
i am facing an problem with that servlet.While downloading, at times it strucks at 290k or 330k.
Note : Acually i am calling this servlet from a popup window.The popup window closes automatically after one minute irrescpective of the download progress.At times i noticed that the download strucks while the popup closes, whether is causes the problem of strucking.
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class Download extends HttpServlet {
HttpSession session =null;
File F;
BufferedInputStream fif;
ServletOutputStream stream;
public void init(){
F=null;
fif=null;
stream =null;
public void doGet(HttpServletRequest request ,HttpServletResponse response) {
try{
     // Setting Buffer size
response.setBufferSize(50000);
               // Setting Content Type
response.setContentType("application/x-filler");
int buffersize;
String cfile="";
boolean flag=false;
session = request.getSession(true);
               //Receiving variables
String fileName= request.getParameter("filename");
String filePath = request.getParameter("filepath");
String downloadFile = filePath + fileName;
F=new File(downloadFile);
String download_date = "sysdate";
String file=F.getName();
buffersize=(int)F.length();
byte b[]=new byte[buffersize];
     //Servet output stream to download file
stream = response.getOutputStream();
response.setHeader("Content-Disposition", "attachment; filename=\"" + file + "\";");
int data;
fif = new BufferedInputStream(new FileInputStream(F));
//writing data to output stream
while((data = fif.read()) != -1) {
stream.write(data);
               //closing objects
fif.close();
stream.close();
F.delete();
}catch(java.net.SocketException se){
System.out.println("SocketException " +se);
catch(IOException io){
System.out.println("IOException " + io);
catch(Exception e){
System.out.println("Exception " +e);      
}

Answer 1

I guess your closing of the window is your problem. Your servlet looks just fine to me.
Try calling this servlet from a browser and see if it still stops..