The State of Reactive Streams

Virtual Java User Group
Virtual Java User Group
Public group

LONDON, london

london · London

How to find us

Location image of event venue


Welcome to our first vJUG session of 2020! This is a virtual Meetup occurring at 5PM UK time (GMT). Join the live broadcast on

The recording will be available immediately afterward.

Take part in the live session discussion on our #live-session slack channel:


The Reactive Streams (RS) specification is state of the art for asynchronous, non-blocking data streams with the fine-grained flow control. It brought a breath of fresh air to reactive programming in the Java ecosystem. As a result, we saw the gathering of many reactive libraries and APIs by one specification.

That was done for a good future, but does it have any future today? How other ecosystems reacted to the appearance of the standard and did they adopt it or not? Moreover, will RS survive after the introduction of fibers in JVM?

All these questions will be answered during the talk.

This is the second reactive talk by Oleh. Check out his previous session recording:

Speaker: Oleh Dokuka

Oleh is mainly a Java Software Engineer / Consultant focused on distributed systems development adopting ReactiveManifesto and ReactiveProgramming techniques. Along with that, Oleh is the author of the book “Reactive Programming is Spring 5.0”:

He is also, an active contributor to the community’s development as co-organizer of Rockstar Night meetups, and as a part of the program committee of conferences such as Devoxx Ukraine, JEEConf, Kotlin Night.