- `add_two_ints_server__rmw_opensplice_cpp` / `add_two_ints_client__rmw_opensplice_cpp`: the server receives additional uninitialized requests - `test_replier_cpp__rmw_opensplice_cpp` / `test_requester_cpp__rmw_opensplice_cpp` has the same problem - the test does not cover that (even with ros2/system_tests#34) since the client succeeds - `add_two_ints_server__rmw_connext_cpp` / `add_two_ints_client__rmw_connext_cpp` do not exchange any messages - `add_two_ints_client__rmw_connext_cpp` can't be stopped with Ctrl-C - same for Connext dynamic