protected HttpServletRequest processMultipart(HttpServletRequest request) {
        if (!"POST".equalsIgnoreCase(request.getMethod())) {
            return (request);
        }
 
        String contentType = request.getContentType();
 
        if ((contentType != null)
            && contentType.startsWith("multipart/form-data")) {
            return (new MultipartRequestWrapper(request));
        } else {
            return (request);
        }
    }