Posted by gouessej on Jul 07, 2016; 6:13pm
URL: https://forum.jogamp.org/JOGL-2-support-for-Ardor3D-JMonkeyEngine-3-jzy3d-and-NiftyGUI-tp1706747p4036888.html

Thanks for reporting this bug, look at this line:
https://github.com/jMonkeyEngine/jmonkeyengine/blob/master/jme3-jogl/src/main/java/com/jme3/input/jogl/NewtMouseInput.java#L325

When the passed JmeCursor is null, it should just call component.setPointerIcon(null) to reset the pointer icon to default. Feel free to make another pull request.