@Override public MasterKey getNMTokenMasterKey() { NodeHeartbeatResponseProtoOrBuilder p = viaProto ? proto : builder; if (this.nmTokenMasterKey != null) { return this.nmTokenMasterKey; } if (!p.hasNmTokenMasterKey()) { return null; } this.nmTokenMasterKey = convertFromProtoFormat(p.getNmTokenMasterKey()); return this.nmTokenMasterKey; }