Design patterns implemented in Java

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

All Algorithms implemented in Java

Spring Framework

Google core libraries for Java

RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.

🏗 Build container images for your Java applications.

Open-Source Web UI for Apache Kafka Management

Spring Data Example Projects

These are the sample Bounded Contexts from the book "Implementing Domain-Driven Design" by Vaughn Vernon: http://vaughnvernon.co/?page_id=168

Framework for Evolutionary Message-Driven Microservices on the JVM

The Hypersistence Utils library (previously known as Hibernate Types) gives you Spring and Hibernate utilities that can help you get the most out of your data access layer.

Get information about countries via a RESTful API

YAS: Yet Another Shop, a sample microservices project in Java

Collection of JUnit example projects

The missing, complete example of Domain-Driven Design enterprise application backed by Spring stack

Make Slack and Facebook Bots in Java.

SteVe - OCPP server implementation in Java. Your trusted open-source EV charging station management system since 2013. Used by CPOs, manufacturers and developers worldwide. Managed cloud →

A Spring Boot JWT starter kit for stateless and token-based authentication apps.

Code examples for my conference talk on implementing ddd with spring

Master JPA using Hibernate as the implementation. Learn the basics of JPA - entities, relationships, entity manager, annotations, JPQL and Criteria API. Take a step into the advanced world of JPA -…

Comprehensive guide to a couple of possible ways of synchronizing two states with Spring tools. Synchronization is shown by separating command and queries in a simple CQRS application.

Backend MVP showcasing JWT (Json Web Token) authentication with multiple login, timeout / refresh / logout (with in memory invalidation) using Spring Security & MySQL JPA.

Dashboard for visualizing Spring Boot microservices and the components they link to.

Open source client and server library of Open Charge-Point Protocol (OCPP) defined by openchargealliance.org (OCA)

Sample applications to demonstrate Observability concepts

A hands-on-lab/tutorial for learning JDK Mission Control 7+.

Code of the 'Practical Guide to Building an API Back End with Spring Boot' book