Now continued as OculiX — see oculix.org
The OWASP ZAP core project
SoapUI is a free and open source cross-platform functional testing
Programmer-friendly testing framework for Java and the JVM
Flexible, lightweight multi-language test reporting tool
Gateway service providing dynamic routing, monitoring and more
State of the art mutation testing system for the JVM
API automation and load testing framework
Test automation made simple
Most popular Mocking framework for unit tests written in Java
The Open Source Test Automation Platform
Database Subsetter and Relational Data Browser
Java GUI-Less browser, supporting JavaScript, to run against web pages
Editor for Fixed Width, Csv and Existing Xml files.
Enterprise integration testing framework
Automated tests with databases: prep, verify, restore tables
A Java Utility Class To Create Combinations of Existing Arrays.
Test Automation framework intended for coarse-grained testing
The Interactive Exernal Accessor Tool for develop, test and support.
Simple example of draw and rotate 3D box
A web application for testing webservices
Easy to set up bug tracking with Java