Free and Open Source, Distributed, RESTful Search Engine

Google core libraries for Java

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

Jenkins automation server

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

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

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

IntelliJ IDEA & IntelliJ Platform

High Performance Inter-Thread Messaging Library

A fast dependency injector for Android and Java.

A high performance caching library for Java

Modern Java - A Guide to Java 8

QuestDB is a high performance, open-source, time-series database

Quarkus: Supersonic Subatomic Java.

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

Guice (pronounced 'juice') is a lightweight dependency injection framework for Java 11 and above, brought to you by Google.

Apache ZooKeeper

The Java gRPC implementation. HTTP/2 based RPC

Fast Android Development. Easy maintainance.

A configuration as code language with rich validation and tooling.

The Clojure programming language

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

📈 Capturing JVM- and application-level metrics. So you know what's going on.

JetBrains theme of Material Theme

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

GoCD - Continuous Delivery server main repository

A fast dependency injector for Android and Java.

Catch common Java mistakes as compile-time errors

Java DSL for easy testing of REST services

A tool for mocking HTTP services