This is an umbrella issue for making OpenRocket work with Java 9, once it's released. Supporting Java 9 has several benefits, perhaps foremost making OpenRocket work on HiDPI screens.

There are several issues to resolve e.g. #346. The major ones relates to how we build the final jar (with bundled deps) and how we make sure the right modules (e.g. java.scripting, which contains javax.script.ScriptEngineFactory) are exposed to the loaded code (since we use a class loader).