Who ate my "Connection reset by peer" SocketException?

[Debashis Roy]

Hi,
 
Trying something which involves catching the "Connection reset by peer" 
SocketException. Below is the code snippet from my servlet with explanatory 
comments.
Does anyone have any idea as to what is happening?
 
try
{
 byte [] bytes = getContentBytes(); //read the actual bytes of the content into 
an array.
 resp.addHeader("Content-Disposition", "attachment;filename=somefile.zip");
 resp.addHeader("Content-Type", "application/zip");
 resp.addHeader("Pragma", "no-cache");
 resp.addHeader("Connection", "close");
 resp.setContentLength(bytes.length);
 OutputStream os = resp.getOutputStream();
 for (int i = 0; i < bytes.length; i++)
 {
  System.out.println("writing byte " + i);
  os.write(bytes[i]);
  /* write all bytes but the last one to the ostream */
  /* the file save dialog shows up in the browser */
  /* netstat shows an established connection from browser to 8080 of tomcat 
host */
  if (i == bytes.length - 2)
  {
   System.out.println("doing intermediate flush...");
   resp.flushBuffer();
   /* sleep for 30 secs */
   /* during this time close the browser and click cancel on the file save 
dialog*/
   /* netstat shows zero connections with port 8080 of tomcat */
   try
   {
    Thread.sleep(30000);
   }
   catch (InterruptedException interex)
   {
   }
  }
  /* the last byte gets written after the sleep period */
  /* was expecting to see the "connection reset by peer" exception here */
 }
 /* or here */
 resp.flushBuffer();
 
 /* Voila !!! no exceptions till here and the code exits cleanly !!! */
}
catch (Throwable th)
{
 th.printStackTrace();
}