// /- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
        // copied from super's method and extends it
        // basically for JVN#14876762
        // thought not all problems are resolved however the main case is safety
        // - - - - - - - - - -/
        final ServletFileUpload upload = createServletFileUpload(request);
        prepareElementsHash();
        try {