else if ( this.extraSids.length > 0 ) {
                this.userSid = this.extraSids[ 0 ];
            }
            this.groupSid = new SID(domainId, groupId);

            // Compute Group IDs with Domain ID to get Group SIDs
            this.groupSids = new SID[groups.length];
            for ( int i = 0; i < groups.length; i++ ) {
                this.groupSids[ i ] = new SID(domainId, groups[ i ].getId());
            }