@Override
public void parse(HttpServletRequest request, String saveDir) throws IOException{

    multipartRequest = WebUtils.getNativeRequest(request, MultipartHttpServletRequest.class);

    if(multipartRequest == null){
        LOG.warn("Unable to MultipartHttpServletRequest");
        errors.add("Unable to MultipartHttpServletRequest");
        return;
    }

    multipartMap = multipartRequest.getMultiFileMap();
    for(Entry<String, List<MultipartFile>> fileEntry : multipartMap.entrySet()){

        String fieldName = fileEntry.getKey();
        for(MultipartFile file : fileEntry.getValue()){

            if(!file.isEmpty()){        //A conditional check is added here.
                File temp = File.createTempFile("upload", ".dat");
                file.transferTo(temp);
                multiFileMap.add(fieldName, temp);
            }
        }
    }
}