Major Description
Post SAMZA-254, the check task has the following warning:
/Users/jhoman/repos/samza/samza-test/src/main/scala/org/apache/samza/test/performance/TestKeyValuePerformance.scala:116: warning: non-variable type argument Array[Byte] in type org.apache.samza.storage.kv.KeyValueStorageEngine[Array[Byte],Array[Byte]] is unchecked since it is eliminated by erasure
val db = if (!engine.isInstanceOf[KeyValueStorageEngine[Array[Byte], Array[Byte]]]) \{