VisualVM is an All-in-One Java Troubleshooting Tool
Apache NetBeans
PDFsam, a desktop application to split, merge, mix, rotate PDF files
Advanced manager and monitor for Apache Tomcat
Enhancing Java Stream API
A Java Virtual Machine for OpenJDK
The modern Essentials suite for Spigot and Paper
TestNG testing framework
Authentication and access-control framework
The Enterprise-ready testing and specification framework
Apache InLong - a one-stop integration framework for massive data
Alibaba Dragonwell8 JDK
A tool for static analysis to look for bugs in Java code
Kotlin wrappers for popular JavaScript libraries
A Minecraft plugin API
XSharp Repository for the Compiler source code
Exposing the JDK Flight Recorder as a Spring Boot Actuator Endpoint
A Python 3 implementation built on GraalVM
Laravel Dusk provides simple end-to-end testing and browser automation
Functional companion to Kotlin's Standard Library
BotCity Framework - Open Source RPA
Alpakka is a Reactive Enterprise Integration library for Java
Framework for application developers to use state machine concepts
Provides support to increase developer productivity in Java
A library of material components for JavaFX