*
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString () {
        String mic = null;
        if ( this.getMechanismListMIC() != null ) {
            mic = Hexdump.toHexString(this.getMechanismListMIC(), 0, this.getMechanismListMIC().length);
        }
        return String.format("NegTokenInit[flags=%d,mechs=%s,mic=%s]", this.getContextFlags(), Arrays.toString(this.getMechanisms()), mic);