Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.

Spring Framework

RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.

Netty project - an event-driven asynchronous network application framework

Jenkins automation server

Event bus for Android and Java that simplifies communication between Activities, Fragments, Threads, Services, etc. Less code, better quality.

Hystrix is a latency and fault tolerance library designed to isolate points of access to remote systems, services and 3rd party libraries, stop cascading failure and enable resilience in complex di…

Apache RocketMQ is a cloud native messaging and streaming platform, making it simple to build event-driven applications.

GraalVM compiles applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀

MyBatis SQL mapper framework for Java

RxJava bindings for Android

High Performance Inter-Thread Messaging Library

A fast dependency injector for Android and Java.

A high performance caching library for Java

Zipkin is a distributed tracing system

Most popular Mocking framework for unit tests written in Java

Apache Pulsar - distributed pub-sub messaging system

Vert.x is a tool-kit for building reactive applications on the JVM

Microservice Architecture with Spring Boot, Spring Cloud and Docker

Very spicy additions to the Java programming language.

Admin UI for administration of spring boot applications

AWS Service registry for resilient mid-tier load balancing and failover.

Stetho is a debug bridge for Android applications, enabling the powerful Chrome Developer Tools and much more.

Change data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.

The Java gRPC implementation. HTTP/2 based RPC

Realm is a mobile database: a replacement for SQLite & ORMs

Fast Android Development. Easy maintainance.

Resilience4j is a fault tolerance library designed for Java8 and functional programming

Feign makes writing java http clients easier

A simple expressive web framework for java. Spark has a kotlin DSL https://github.com/perwendel/spark-kotlin