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