try {
//DiskFileUpload diskFileUpload = new DiskFileUpload(
// new LiferayFileItemFactory(DEFAULT_TEMP_DIR));
ServletFileUpload diskFileUpload = new LiferayDiskFileUpload(
new LiferayFileItemFactory(DEFAULT_TEMP_DIR), req);
diskFileUpload.setSizeMax(DEFAULT_SIZE_MAX);
List list = diskFileUpload.parseRequest(req);