JEP with off heap support to replace portions of Unsafe and other sun.* methods.
OpenGL/Vulkan Java 3D Engine
A lighweight, fast Java 8 template engine
Classic point and click adventure game engine and editor
Lightweight Execution Engine for DMN (Decision Model and Notation) written in Java.
Got any useful tips about peter-lawrey/TransFIX?
... I send out a list of most interesting libraries and apps in the "Java" section to about 1100 subscribers.
Do you want it too?