Posted by gouessej on Oct 23, 2015; 11:37am
URL: https://forum.jogamp.org/JOGL-2-support-for-Ardor3D-JMonkeyEngine-3-jzy3d-and-NiftyGUI-tp1706747p4035571.html

Why do you call System.gc()? It's not a good idea:
https://github.com/AndiMb/Ardor3DTabbedPane/blob/master/src/ardor3dtabbedpane/ArdorPanel.java#L227