} else if (fessConfig.isSupportedUploadedFile(fileName) || fessConfig.isSupportedUploadedFile(uploadedFileName)) {
            uploadFile = ResourceUtil.getResourceAsFileNoException(fileName);
            if (uploadFile == null) {
                throwValidationError(messages -> messages.addErrorsDesignFileNameIsNotFound("designFileName"), this::asListHtml);
                return null;

         * @return The absolute file path of the resource, or null if not found
         */
        protected String getResourcePath(final String path) {
            final File file = ResourceUtil.getResourceAsFileNoException(path);
            if (file != null) {
                return file.getAbsolutePath();
            }
            return null;
        }

        /**