com.sun.net.httpserver freezes when user cancel downloading while server transferring file

Question

com.sun.net.httpserver freezes when user cancel downloading while server transfering file

This is piece of implementation of java web-server (based on com.sun.net.httpserver) which serves static file downloading.

while ((count = fs.read(buffer)) > 0) {
 try {
        output.write(buffer, 0, count);
        output.flush();
     } catch (IOException e) {
        System.out.print(e.getMessage() + "\n");
     }
}

If user click Cancel in Save As dialog window while aforementioned piece of code still works the server freezes without throwing exception (I expect Broken Pipe exception). Any suggestions on how to avoid freeze?