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

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.

Source for the TechEmpower Framework Benchmarks project

Blue Ocean is a reboot of the Jenkins CI/CD User Experience

jOOλ - The Missing Parts in Java 8 jOOλ improves the JDK libraries in areas where the Expert Group's focus was elsewhere. It adds tuple support, function support, and a lot of additional functional…

Property-based testing, JUnit-style

DDD-CqRS sample v2.0 project that helps you with starting out advanced domain modeling using Spring, JPA and testing

One repo to rule them all. All Java Katas in one repo. #AllTestsGreenWithJDK16 #BuildsCleanWithJava15

JSON Web Token example that integrates both a Spring backend with an AngularJS frontend.

Application to demonstrate Domain Driven Design Context Mapping patterns based on Spring Boot

Several code katas on a racing car theme

Jenkins ec2 plugin

A modern testing and behavioural specification framework for Java 8

Code that demonstrates various IntelliJ IDEA features

Test Driver to test your RESTful services and clients

Examples using Spring Data Document features

TDD By Example

WebDAV server backed by MongoDB

Cinema playground - example repo from reserving seats with different rules

The game rock-paper-scissors implemented using Event Sourcing in Java

A Refactoring Golf exercise

A set of simple examples to show what can be done with the JSweet transpiler (Java to JavaScript)

Library for writing beautiful, RSpec/Jasmine/Mocha/Jest-style specifications in Java, Kotlin and Groovy

Example of Page Object pattern with selenium WebDriver.

Demo is available at heroku

Diamond Kata

Exercise: apply and understand the The Composite Reuse Principle

A simple example on how to use the Togglz JSP support.