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

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

Telegram for Android source

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

Jenkins automation server

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…

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

A tool for reverse engineering Android apk files

FizzBuzz Enterprise Edition is a no-nonsense implementation of FizzBuzz made by serious businessmen for serious business purposes.

JDK main-line development https://openjdk.org/projects/jdk

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

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

A fast dependency injector for Android and Java.

Graphs for Everyone

Open source alternative to Auth0 / Firebase Auth / AWS Cognito

Logstash - transport and process your logs, events, or other data

APM, (Application Performance Management) tool for large-scale distributed systems.

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.

Redis Java client

Open-Source Web UI for Apache Kafka Management

A configuration as code language with rich validation and tooling.

Spinnaker is an open source, multi-cloud continuous delivery platform for releasing software changes with high velocity and confidence.

A Camera component for React Native. Also supports barcode scanning!

Ultra Pull to Refresh for Android. Support all the views.

JetBrains theme of Material Theme

Examples and server integrations for generating the Swagger API Specification, which enables easy access to your REST API

A fast dependency injector for Android and Java.

Bootstrap style widgets for Android, with Glyph Icons