* @throws IOException
     */
    public jcifs.SID[] getGroupMemberSids ( String authorityServerName, CIFSContext tc, int flags ) throws IOException {
        if ( this.type != SID_TYPE_DOM_GRP && this.type != SID_TYPE_ALIAS )
            return new SID[0];

        return tc.getSIDResolver().getGroupMemberSids(tc, authorityServerName, getDomainSid(), getRid(), flags);
    }


    /**
     * @param context

     */
    public static final int SID_TYPE_DOM_GRP = 2;

    /**
     * 
     */
    public static final int SID_TYPE_DOMAIN = 3;

    /**
     * 
     */
    public static final int SID_TYPE_ALIAS = 4;

    /**
     * 
     */
    public static final int SID_TYPE_WKN_GRP = 5;

    /**
     * 
     */
    public static final int SID_TYPE_DELETED = 6;

    /**
     * 
     */

    public static final int SID_TYPE_DOM_GRP = lsarpc.SID_NAME_DOM_GRP;
    public static final int SID_TYPE_DOMAIN  = lsarpc.SID_NAME_DOMAIN;
    public static final int SID_TYPE_ALIAS   = lsarpc.SID_NAME_ALIAS;
    public static final int SID_TYPE_WKN_GRP = lsarpc.SID_NAME_WKN_GRP;
    public static final int SID_TYPE_DELETED = lsarpc.SID_NAME_DELETED;
    public static final int SID_TYPE_INVALID = lsarpc.SID_NAME_INVALID;