Hands-On Reactive Programming in Spring 5

Reactive Streams technology compatibility kit

While at first glance, Reactive Streams does not seem to be tricky, in reality it does contain a lot of hidden pitfalls. Apart from Java interfaces, the specification includes a lot of documented rules for implementation—perhaps this is the most challenging point. These rules strictly constrain each interface, and it is vital to preserve all of the behaviors mentioned in the specification. This allows further integration of implementations from different vendors, which does not cause any problems. That is the essential point for which these rules were formed. Unfortunately, building a proper test suit that covers all corner cases may take much more time than the proper implementation of interfaces. ...