);          String uuidValue = "";         FileItem itemFile = null;          try {             // parses the request's content to extract file data             List formItems = upload.parseRequest(request);             Iterator iter = formItems.iterator();              // iterates over form's fields to get UUID Value             while (iter.hasNext()) {                 FileItem item = (FileItem) iter.next();                 if (item.isFormField()) {                  