* <tt>S-X-Y-Z</tt> strings of fragments of).
     * <p>
     * Alternatively <tt>getSecurity(true)</tt> may be used to resolve all
     * SIDs together and detect network failures.
     * 
     * @return array of ACEs
     * @throws IOException
     */
    ACE[] getSecurity () throws IOException;


    /**
     * Return an array of Access Control Entry (ACE) objects representing