ReactiveX/RxJava

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 sequences of data/events and adds operators that allow you to compose sequences together declaratively while abstracting away concerns about things like low-level threading, synchronization, thread-safety and concurrent data structures. :+1: Native Java 26 implementation 1 . :+1: No 3rd party library required at runtime. :+1: JPMS and :question: OSGi support still intact. :+1: java.util.concurrent.Flow…