RxJava is a Java VM implementation of Reactive Extensions: a library for composing asynchronous and event-based programs by using observable sequences. It extends the observer pattern to support ...

Reactor is a reactive streams library targeting Java 8 and providing an Rx-conforming API It uses the same approach and philosophy as RxJava despite some API differences It is a 4th generation ...

Flowable is a set of very compact and highly efficient open source business process engines. They provide a workflow and Business Process Management (BPM) platform for developers, system admins and ...