4.0.0 io.confluent kafka-schema-registry-parent 5.5.6 Apache License 2.0 http://www.apache.org/licenses/LICENSE-2.0.html repo kafka-streams-protobuf-serde jar kafka-streams-protobuf-serde io.confluent kafka-protobuf-serializer io.confluent kafka-schema-registry-client org.apache.kafka kafka-streams junit junit test