private Record<SSHFPData> checkSSHFPRecord(Record<SSHFPData> record) { SSHFPData rdata = record.getRData(); checkNotNull(rdata.getAlgorithm(), "rdata.algorithm cannot be null for SSHFPRecord: %s", record); checkNotNull(rdata.getType(), "rdata.type cannot be null for SSHFPRecord: %s", record); checkNotNull(rdata.getFingerprint(), "rdata.fingerprint cannot be null for SSHFPRecord: %s", record); return record; }