- Remove proxy classes for Spring transactions, use interfaces as Spring recommends.
Amend:
Peer review comments.
Set retrieval status to failed when payload is null.
Change-Id: I458b13856302c8faceeef985c1c41115644520b7
Former-commit-id: 0bdaf0babe [formerly 25faaa2af0] [formerly dd8ca33fc4] [formerly d143735ea8 [formerly dd8ca33fc4 [formerly 69f294183da4bbeb535b11c81550b1e9b4124ac6]]]
Former-commit-id: d143735ea8
Former-commit-id: ba20e1bd90048ad833da2d88ebbec80e0486dca1 [formerly 9783dc4d9f]
Former-commit-id: 6f821ed8c9