AssertJ is a library providing easy to use rich typed assertions

Opinionated Maven Plugin that formats your Java code.

Apache Camel is an open source integration framework that empowers you to quickly and easily integrate various systems consuming or producing data.

State of the art mutation testing system for the JVM

Package to support internationalization, containing ISO 3166-1 country code enum, ISO 639-1 language code enum, etc.

Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS powered by PHP, Markdown, Twig, and Symfony

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.