Applet within browser not releasing file resource

Question

hi,
I have an applet for ftp images upload.
run from eclipse IDE (which uses applet viewer) the applet is ok.
if i run my applet from browser here is what happens:
i upload a file .& leave the browser opened.
i then open this same file with gimp or photo-shop & get file in use error.
if i close browser & try opening file .it works ok.
why the file isn't released when applet instance still on browser ?
is there a fix to this issue ?
thanks for helping .

Answer 1

thanks for prompt reply.
yes i close all streams...
the core method i use to upload files is below (client is a FTPClient object)
private synchronized void putFile(File file, String remoteFile)
               throws FileUploadException {
          String sFile = null;
          try {
               sFile = r.chomp(remoteFile, '/');
               client.put(file.getAbsolutePath(), sFile + file.getName());
               r.numBytes += file.length();
          } catch (Exception e) {
               //e.printStackTrace();
               try {
                    retry(file, sFile);
               } catch (Exception e1) {
                    throw new FileUploadException(e1.getMessage());
     }what am i doing wrong ?