Posted by gouessej on Mar 28, 2012; 8:48am
URL: https://forum.jogamp.org/question-about-the-GLCanvas-and-GLJPanel-tp3844025p3863938.html

Anyway, if you want to test the capability of these both canvas, only create one of it. GLCanvas is fine for Java 2D rendering if you're accustomed to mix AWT and Swing and someone else reminded us that GLCanvas is faster. GLCanvas has a lower memory footprint and is more reliable. You should use GLJPanel only in special cases, for example when you need to use internal frames with JOGL.