cloneInternal(auth, this);
        return auth;
    }

    /**
     * Clone the context
     *
     * @param to the target authenticator
     * @param from the source authenticator
     */
    protected static void cloneInternal(JAASAuthenticator to, JAASAuthenticator from) {
        Kerb5Authenticator.cloneInternal(to, from);
        to.serviceName = from.serviceName;

        return this.ntHash;
    }

    @Override
    public NtlmPasswordAuthenticator clone() {
        final NtlmNtHashAuthenticator cloned = new NtlmNtHashAuthenticator(this.ntHash.clone());
        cloneInternal(cloned, this);
        return cloned;
    }

        cloneInternal(cloned, this);
        return cloned;
    }

    /**
     * Clone internal fields from one NtlmPasswordAuthentication to another.
     *
     * @param to the target authentication object to copy to
     * @param from the source authentication object to copy from
     */

     */
    @Override
    public synchronized void close(final long lastWriteTime) throws CIFSException {
        closeInternal(lastWriteTime, true);
    }

    /**
     * @param lastWriteTime
     * @throws SmbException
     */
    void closeInternal(final long lastWriteTime, final boolean explicit) throws CIFSException {
        final SmbTreeHandleImpl t = this.tree;
        try {