At the docs it says

This variable can be used to alter the location of a node without disturbing its layoutBounds, which makes it useful for animating a node's location.

"Animate" should mean that you call it once every frame, right?

Here is some short example code to demonstrate what I'm talking about:

https://gist.github.com/ChristophHaag/661be992429b451218e9ee1fb0eacdec

and the important part is

imv.setTranslateX(imv.getTranslateX()   deltax);
imv.setTranslateY(imv.getTranslateY()   deltay);
imv.setRotate(imv.getRotate()   1);

inside the AnimationTimer.

If I run this program with openjdk8 or oracle jdk 8 on Linux, it will eat Gigabyte after Gigabyte of memory and consume a massive amount of CPU resources.

jvisualvm doesn't work for this because it doesn't support java 8 lambdas, but the netbeans profiler has a workaround for that. I tried looking in there, but as far as I can see all that time is spent in some X11 GLES code: https://i.imgur.com/KqZU91l.png

Is this just a platform issue? Can someone on Windows or something like that test it and report back?