final byte[] mechanismListMIC) {
        setMechanisms(mechanisms);
        setContextFlags(contextFlags);
        setMechanismToken(mechanismToken);
        setMechanismListMIC(mechanismListMIC);
    }

    /**
     * Constructs a NegTokenInit by parsing the provided token bytes
     * @param token the SPNEGO token bytes to parse
     * @throws IOException if parsing fails