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,…

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

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

MyBatis SQL mapper framework for Java

ANTLR (ANother Tool for Language Recognition) is a powerful parser generator for reading, processing, executing, or translating structured text or binary files.

A fast dependency injector for Android and Java.

Most popular Mocking framework for unit tests written in Java

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

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

Redis Java client

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

Flyway by Redgate • Database Migrations Made Easy.

Java JsonPath implementation

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.

A damn simple library for building production-ready RESTful web services.

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

Java DSL for easy testing of REST services

jOOQ is the best way to write SQL in Java

configuration library for JVM languages using HOCON files

vʌvr (formerly called Javaslang) is a non-commercial, non-profit object-functional library that runs with Java 8+. It aims to reduce the lines of code and increase code quality.

Advanced Java Redis client for thread-safe sync, async, and reactive usage. Supports Cluster, Sentinel, Pipelining, and codecs.

Picocli is a modern framework for building powerful, user-friendly, GraalVM-enabled command line apps with ease. It supports colors, autocompletion, subcommands, and more. In 1 source file so apps …

The simple, stupid rules engine for Java

Official GeoServer repository

Fault tolerance and resilience patterns for the JVM

Awaitility is a small Java DSL for synchronizing asynchronous operations

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

Java annotation processor to create immutable objects and builders, for records too. Sweep boilerplate code under the rug!

Backport of Java 8's lambda expressions to Java 7, 6 and 5

Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with…