MRUNIT-193 - Serialization.copy throws NPE instead of ISE (missing serilization impl) for Hadoop 2.x (Cosmin Lehen via Brock Noland)
MRUNIT-198 - Serialization is missing in MockMultipleOutputs (Lars Grote via Brock)
MRUNIT-199 - Mapper.Context and Reducer.Context are not fully mocked (Lukas Nalezenec via Brock)