Posted by ThomasR on Feb 13, 2015; 2:13pm
URL: https://forum.jogamp.org/NPE-destroying-Java3d-component-tp4034018p4034028.html

Same problem with 1.6.0pre11 and jogl2.2.4  Looks like NodeRetained's VirtualUniverse reference is set to null before expected.  I guess the question is who has access to NodeRetainded.universe and can set it to null.  Just to be clear, I'm no longer using Java3D 1.5.2, but I do remember this Exception.