Affects Version/s: None
Fix Version/s: None
The common package introduced a better way of defining requests using a new protocol definition DSL and also includes wrapper objects for these.
We should switch KafkaApis over to use these request definitions and consider the scala classes deprecated (we probably need to retain some of them for a while for the scala clients).
This will be a big improvement because
1. We will have each request now defined in only one place (Protocol.java)
2. We will have built-in support for multi-version requests
3. We will have much better error messages (no more cryptic underflow errors)