*
     * @param challenge The server challenge.
     * @param dest The destination array in which the user session key will be
     * placed.
     * @param offset The offset in the destination array at which the
     * session key will start.
     */
    void getUserSessionKey(byte[] challenge, byte[] dest, int offset) throws SmbException {
        if (hashesExternal) return;
        try {

                if ( !Objects.equals(getServerWithDfs(), dest.getServerWithDfs()) || !Objects.equals(getShare(), dest.getShare()) ) {
                    throw new SmbException("Cannot rename between different trees");
                }
            }

            if ( log.isDebugEnabled() ) {
                log.debug("renameTo: " + getUncPath() + " -> " + dest.getUncPath());
            }

     * @param dest
     *            The destination array in which the user session key will be
     *            placed.
     * @param offset
     *            The offset in the destination array at which the
     *            session key will start.
     * @throws SmbException
     */
    public void getUserSessionKey ( CIFSContext tc, byte[] chlng, byte[] dest, int offset ) throws SmbException {

     * new <tt>SmbResource</tt></i>.
     *
     * @param dest
     *            An <code>SmbResource</code> that represents the new pathname
     * @throws CIFSException
     * @throws NullPointerException
     *             If the <code>dest</code> argument is <code>null</code>
     */
    void renameTo ( SmbResource dest ) throws CIFSException;


    /**

     */
    @Override
    public void getUserSessionKey ( CIFSContext tc, byte[] chlng, byte[] dest, int offset ) throws SmbException {
        if ( this.hashesExternal ) {
            return;
        }
        super.getUserSessionKey(tc, chlng, dest, offset);
    }

    static void writeULong ( byte[] dest, int offset, int ulong ) {
        dest[ offset ] = (byte) ( ulong & 0xff );
        dest[ offset + 1 ] = (byte) ( ulong >> 8 & 0xff );
        dest[ offset + 2 ] = (byte) ( ulong >> 16 & 0xff );
        dest[ offset + 3 ] = (byte) ( ulong >> 24 & 0xff );
    }


    static void writeUShort ( byte[] dest, int offset, int ushort ) {
        dest[ offset ] = (byte) ( ushort & 0xff );

    }

    static void writeULong(byte[] dest, int offset, int ulong) {
        dest[offset] = (byte) (ulong & 0xff);
        dest[offset + 1] = (byte) (ulong >> 8 & 0xff);
        dest[offset + 2] = (byte) (ulong >> 16 & 0xff);
        dest[offset + 3] = (byte) (ulong >> 24 & 0xff);
    }

    static void writeUShort(byte[] dest, int offset, int ushort) {
        dest[offset] = (byte) (ushort & 0xff);

 * new <tt>SmbFile</tt></i>.
 *
 * @param  dest  An <code>SmbFile</code> that represents the new pathname
 * @throws NullPointerException
 *         If the <code>dest</code> argument is <code>null</code>
 */
    public void renameTo( SmbFile dest ) throws SmbException {
        if( getUncPath0().length() == 1 || dest.getUncPath0().length() == 1 ) {