@Override
        public synchronized void addComponentListener(ComponentListener l) {
            super.addComponentListener(l);
        }
(non-Javadoc)
@see java.awt.Component#addComponentListener(java.awt.event.ComponentListener) 
@param l object-listener
jme3-lwjgl3/src/main/java/com/jme3/system/lwjgl/LwjglCanvas.java