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

Free and Open Source, Distributed, RESTful Search Engine

Spring Framework

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

Open Source Identity and Access Management For Modern Applications and Services

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

IntelliJ IDEA & IntelliJ Platform

High Performance Inter-Thread Messaging Library

Quarkus: Supersonic Subatomic Java.

Most popular Mocking framework for unit tests written in Java

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

Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.

LangChain4j is an open-source Java library that simplifies the integration of LLMs into Java applications through a unified API, providing access to popular LLMs and vector databases. It makes impl…

A collection of samples demonstrating different frameworks and techniques for automated testing

Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.

Efficient reliable UDP unicast, UDP multicast, and IPC message transport

✅ The programmer-friendly testing framework for Java and the JVM

FastHub the ultimate GitHub client for Android.

Apache Groovy: A powerful multi-faceted programming language for the JVM platform

Apache Maven core

🔬 Java Code Coverage Library

PDFsam, a desktop application to split, merge, mix, rotate PDF files and extract pages

SpotBugs is FindBugs' successor. A tool for static analysis to look for bugs in Java code.

A Java architecture test library, to specify and assert architecture rules in plain Java

Apache Log4j is a versatile, feature-rich, efficient logging API and backend for Java.

An adaptation of the JSR-310 backport for Android.

Simple Binary Encoding (SBE) - High Performance Message Codec

High Performance data structures and utility methods for Java

Fluent testing assertions for Java and the JVM

An expandable layout container for Android