Vert.x was in our original batch of tests (round 1). At the time, its documentation showed that using the persistor and event bus was the standard intended mode of communicating with a database. If someone can point us to documentation showing that is no longer how you're supposed to use a database with Vert.x, we'd be happy to accept a pull request that changes the test. Otherwise, I think it's valid as is, and not misleading.