Design patterns implemented in Java

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

Zuul is a gateway service that provides dynamic routing, monitoring, resiliency, security, and more.

Open-Source Web UI for Apache Kafka Management

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

Apache JMeter open-source load testing tool for analyzing and measuring the performance of a variety of services

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.

Brings the popular ruby faker gem to Java

Official Java client library for kubernetes

Library for OpenAPI 3 with spring-boot

Example Spring codebase containing real world examples (CRUD, auth, advanced patterns, etc) that adheres to the RealWorld API spec.

mqtt-spy is an open source desktop & command line utility intended to help you with monitoring activity on MQTT topics

Slack Developer Kit (including Bolt for Java) for any JVM language

PipelinR is a lightweight command processing pipeline ❍ ⇢ ❍ ⇢ ❍ for your Java awesome app.

Provides a Dotenv property source for Spring and Spring Boot

Support on Checkstyle in SonarQube. Officially transfered from https://github.com/SonarQubeCommunity/sonar-checkstyle

The JPA Processor fills the gap between Olingo V4 and the database, by providing a mapping between JPA metadata and OData metadata, generating queries and supporting the entity manipulations.

Gradle plugin that creates projects from your own cookiecutter