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

Spring Framework

Ghidra is a software reverse engineering (SRE) framework

Google core libraries for Java

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

Dex to Java decompiler

The java implementation of Apache Dubbo. An RPC and microservice framework.

Termux - a terminal emulator application for Android OS extendible by variety of packages.

Getting Started with Spring Boot 3:

Netty project - an event-driven asynchronous network application framework

ZXing ("Zebra Crossing") barcode scanning library for Java, Android

A libre lightweight streaming front-end for Android.

A browser automation framework and ecosystem.

Mirror of Apache Kafka

FASTJSON 2.0.x has been released, faster and more secure, recommend you upgrade.

Telegram for Android source

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

Apache Flink

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…

APM, Application Performance Monitoring System

Open Source Identity and Access Management For Modern Applications and Services

A Java serialization/deserialization library to convert Java Objects into JSON and back

Redisson - Valkey and Redis Java client. Complete Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Over 50 Valkey and Redis based Java objects and services: Set, Multimap, SortedSet, Map, L…

Jenkins automation server

a fast, scalable, multi-language and extensible build system

This project is deprecated and stale. The latest ExoPlayer code is available in https://github.com/androidx/media

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

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

A tool for reverse engineering Android apk files

光 HikariCP・A solid, high-performance, JDBC connection pool at last.