JUnit Jupiter is the API for writing tests using JUnit 5.

Mockito mock objects library core API and implementation

This is the SPI that Atlassian product need to implement in order to support ActiveObjects.

An extension to Atlassian Plugins that provides a loader that loads plugins into OSGi

Bridge OSGi bundle that better ties OSGi into the Atlassian Plugins framework

A plugin that provides API for Shared Application Access Layer

Guava is a suite of core and expanded libraries that include

HSQLDB - Lightweight 100% Java SQL Database Engine

Java Servlet is the foundation web specification in the Java Enterprise Platform. Developers can build web applications ...

Implementation for Apache Log4J, a highly configurable logging tool that focuses on performance and low garbage ...

This is the full Active Objects library, if you don't know which one to use, you probably want this one.

API for SLF4J (The Simple Logging Facade for Java) which serves as a simple facade or abstraction for various logging ...

SLF4J Reload4j Provider

Spring/OSGi core classes. Offers OSGi-based application context and importer/exporter functionality.