byte[] keyb = Hex.decode(key);
        byte[] datab = data.getBytes(StandardCharsets.US_ASCII);
        byte[] javaMac = sun.security.krb5.internal.crypto.ArcFourHmac.calculateChecksum(keyb, usage, datab, 0, datab.length);
        byte[] mac = PacMac.calculateMacArcfourHMACMD5(usage, makeKey(keyb, 23), datab);
        checkBytes(javaMac, mac);
        checkBytes(Hex.decode(expect), javaMac);

    private static final Logger log = LoggerFactory.getLogger(Smb2CloseResponse.class);

    /**
     * 
     */
    public static final int SMB2_CLOSE_FLAG_POSTQUERY_ATTIB = 0x1;

    private final byte[] fileId;
    private final String fileName;
    private int closeFlags;
    private long creationTime;
    private long lastAccessTime;
    private long lastWriteTime;

            cur.chain(closeReq);

            Smb2CreateResponse createResp = th.send(cr);

            Smb2CloseResponse closeResp = closeReq.getResponse();
            SmbBasicFileInfo info;

            if ( ( closeResp.getCloseFlags() & Smb2CloseResponse.SMB2_CLOSE_FLAG_POSTQUERY_ATTIB ) != 0 ) {
                info = closeResp;
            }