if ( tf.getConfig().isDfsDisabled() || tf.getCredentials().getUserDomain() == null || tf.getCredentials().getUserDomain().isEmpty() ) {
            return null;
        }

        if ( this._domains != null && System.currentTimeMillis() > this._domains.expiration ) {
            this._domains = null;
        }

     */
    public byte[] toByteArray () {
        return toByteArray(this);
    }


    /**
     * 
     * @return whether the SID is empty (no sub-authorities)
     */
    public boolean isEmpty () {
        return this.sub_authority_count == 0;
    }


    /**
     * 
     * @return whether the SID is blank (all sub-authorities zero)
     */
    public boolean isBlank () {

                wildcard = dff.wildcard;
            searchAttributes = dff.attributes;
        }
        SmbResourceLocator locator = parent.getLocator();
        if ( locator.getURL().getHost().isEmpty() ) {
            // smb:// -> enumerate servers through browsing
            Address addr;
            try {
                addr = locator.getAddress();
            }
            catch ( CIFSException e ) {

        }
    }


    protected void initProtocolVersions ( String minStr, String maxStr ) {
        DialectVersion min = ( minStr != null && !minStr.isEmpty() ) ? DialectVersion.valueOf(minStr) : null;
        DialectVersion max = ( maxStr != null && !maxStr.isEmpty() ) ? DialectVersion.valueOf(maxStr) : null;
        initProtocolVersions(min, max);
    }

        try ( FileChannel ch = FileChannel.open(config, StandardOpenOption.READ);
              InputStream is = Channels.newInputStream(ch) ) {
            props.load(is);

        }
        if ( !props.isEmpty() ) {
            Map<String, String> map = toMap(props);
            String cfgname = fname.substring(0, fname.length() - 5);
            configs.put(cfgname, map);

        if ( "guest".equalsIgnoreCase(this.username) ) {
            t = AuthenticationType.GUEST;
        }
        else if ( ( getUserDomain() == null || getUserDomain().isEmpty() ) && getUsername().isEmpty() && ( getPassword().isEmpty() ) ) {
            t = AuthenticationType.NULL;
        }
        return t;
    }


    @SuppressWarnings ( "unchecked" )
    @Override

        }
        if ( !dr.getPath().isEmpty() ) {
            dunc = "\\" + dr.getPath() + dunc;
        }

        if ( dunc.charAt(0) != '\\' ) {
            log.warn("No slash at start of remaining DFS path " + dunc);
        }

        this.unc = dunc;
        if ( dr.getShare() != null && !dr.getShare().isEmpty() ) {
            this.share = dr.getShare();
        }

            }

            // Compute User IDs with Domain ID to get User SIDs
            // First extra is user if userId is empty
            if ( !userId.isEmpty() && !userId.isBlank() ) {
                this.userSid = new SID(domainId, userId);
            }
            else if ( this.extraSids.length > 0 ) {
                this.userSid = this.extraSids[ 0 ];
            }

            throw new UnknownHostException(
                "no name with type 0x" + Hexdump.toHexString(addr.getNameType(), 2)
                        + ( ( ( addr.getName().getScope() == null ) || ( addr.getName().getScope().isEmpty() ) ) ? " with no scope"
                                : " with scope " + addr.getName().getScope() )
                        + " for host " + addr.getHostAddress());
        }
    }


    /**
     *