public SID getDomainSid () {
        return new SID(this, SID_TYPE_DOMAIN, this.domainName, null, getType() != SID_TYPE_DOMAIN);
    }


    /**
     * Get the RID
     * 
     * This is the last subauthority identifier
     * 
     * @return the RID
     */
    @Override
    public int getRid () {
        if ( getType() == SID_TYPE_DOMAIN )