JavaFX is not yet supported, but we plan to get it to work soon.

The issue here is that there is very little Java in JavaFX, it's mostly native C++ code. This makes it actually quite similar to the LWJGL library used by Minecraft.

Our plan is to use for JavaFX the same technology we have developed for LWJGL.

thanks! that's kinda what I figured. And now it's not part of Java's "core" so it'd make sense if it was "out of scope"