}
        final long now = System.currentTimeMillis();
        int retry = 1;

        do {
            if (this.dcListExpiration < now) {
                final Address[] list = getTransportContext().getNameServiceClient().getNbtAllByName(domain, 0x1C, null, null);
                this.dcListExpiration = now + this.netbiosCacheTimeout * 1000L;
                if (list != null && list.length > 0) {
                    this.dcList = list;