if (isEmpty(str)) {
            return EMPTY_STRINGS;
        }
        final List<String> list = newArrayList();
        final StringTokenizer st = new StringTokenizer(str, delim);
        while (st.hasMoreElements()) {
            list.add(st.nextElement().toString());
        }
        return list.toArray(new String[list.size()]);
    }

    /**

     * @param textual the textual representation of the SID
     * @throws SmbException if the textual format is invalid
     */
    public SID(final String textual) throws SmbException {
        final StringTokenizer st = new StringTokenizer(textual, "-");
        if (st.countTokens() < 3 || !st.nextToken().equals("S")) {
            // need S-N-M
            throw new SmbException("Bad textual SID format: " + textual);
        }