Design patterns implemented in Java

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

Everything you need to know to get the job.

The automation tower defense RTS

🔥 Seata is an easy-to-use, high-performance, open source distributed transaction solution.

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

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

A high performance caching library for Java

Modern Java - A Guide to Java 8

Quarkus: Supersonic Subatomic Java.

Open source alternative to Auth0 / Firebase Auth / AWS Cognito

🏗 Build container images for your Java applications.

Microservice Architecture with Spring Boot, Spring Cloud and Docker

Very spicy additions to the Java programming language.

Admin UI for administration of spring boot applications

A configuration as code language with rich validation and tooling.

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.

An annotation processor for generating type-safe bean mappers

Java DSL for easy testing of REST services

Hazelcast is a unified real-time data platform combining stream processing with a fast data store, allowing customers to act instantly on data-in-motion for real-time insights.

A comprehensive Domain-Driven Design example with problem space strategic analysis and various tactical patterns.

Simple OAuth library for Java

A gradle plugin for getting java lambda support in java 6, 7 and android

Spring Authorization Server

MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap-memory. It is a fast and easy to use embedded Java database engine.

An application observability facade for the most popular observability tools. Think SLF4J, but for observability.

A reference implementation of a JSON package in Java.

Distributed lock for your scheduled tasks

Kubernetes integration with Spring Cloud Discovery Client, Configuration, etc...