This topic shows examples and documentation with regard to the reactive concepts of Flowable and Subscriber that were introduced in rxjava version2
the example needs rxjava2 as a dependency, the maven coordinates for the used version are:
<dependency>
<groupId>io.reactivex.rxjava2</groupId>
<artifactId>rxjava</artifactId>
<version>2.0.8</version>
</dependency>