hrm.md

This:

        final HttpServer server = vertx.createHttpServer();
        final Flowable<HttpServerRequest> requestFlowable = server.requestStream().toFlowable();

or

that:

        final Flowable<HttpServerRequest> requestFlowable = vertx.createHttpServer()
                                                                  .requestStream().toFlowable();

I lean towards #2

Yes, #2 is probably cleaner

I don't have a strong preference. #2 is more succinct, #1 perhaps slightly more readable.