Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. By default it supports the Google Java Style Guide and Sun Code Conventions, but is highly co…

Keep your code spotless

Adaptable, fast automation for all

Google core libraries for Java

Apache Spark - A unified analytics engine for large-scale data processing

✅ The 5th major version of the programmer-friendly testing framework for Java and the JVM

Spring Framework

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

Catch common Java mistakes as compile-time errors

Automated mass refactoring of source code.

Apache Maven Project Parent POMs

Apache Maven core

Open Source Identity and Access Management For Modern Applications and Services

Mirror of Apache Kafka

The Kotlin Programming Language.

An extensible multilanguage static code analyzer.

🔎 Open source distributed and RESTful search engine.

SpotBugs is FindBugs' successor. A tool for static analysis to look for bugs in Java code.

IntelliJ IDEA & IntelliJ Platform

OpenRewrite recipes for identifying and fixing static analysis issues.

Free and Open Source, Distributed, RESTful Search Engine

Jenkins automation server

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

Idiomatic persistence for Java and relational databases

Most popular Mocking framework for unit tests written in Java

Reformats Java source code to comply with Google Java Style.

Continuous Inspection

OpenRewrite's Maven plugin.

A modern, lambda-friendly, 120 character Java formatter.