Hi All, I'd like to start a vote on this KIP ( https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=87298242) which aims to refactor ExtendedSerializer/Serializer and ExtendedDeserializer/Deserializer.
To summarize what's the motivation: When headers were introduced by KIP-82 the ExtendedSerializer and ExtendedDeserializer classes were created in order to keep interface compatibility but still add `T deserialize(String topic, Headers headers, byte[] data);` and `byte[] serialize(String topic, Headers headers, T data);` methods that consume the headers for serialization/deserialization. The reason for doing so was that Kafka at that time needed be compatbile with Java 7. Since we're not compiling on Java 7 anymore (KAFKA-4423) we'll try consolidate the way we're using these in a backward compatible fashion: deprecating the Extended* classes and moving the aforementioned methods up in the class hierarchy. I'd be happy to get votes or additional feedback on this. Viktor
