public static Path path(@Nullable String path) {
        validatePath(path);
        if (SEPARATOR.equals(path)) {
            return ROOT;
        } else {
            return parsePath(path);
        }
    }

    /**
     * throws if no path is specified
     *
     * @since 8.5
     */
    @Incubating
    public static void validatePath(@Nullable String path) {