Posted by Celine on Feb 16, 2023; 9:45am
URL: https://forum.jogamp.org/Resize-flickering-with-AWT-GLCanvas-and-JOGL-2-4-0-tp4042181p4042192.html

Sven Gothel wrote

From the stack trace, yes we refactored - but seems like the same toolkit method is being called at roughly the same point. Right?

Not really...
With JOGL 2.3.2, the sun.awt.windows.WToolkit.disableBackgroundErase(Canvas) is called :

    @Override
    public void disableBackgroundErase(Canvas canvas) {
        WCanvasPeer peer = AWTAccessor.getComponentAccessor().getPeer(canvas);
        if (peer == null) {
            throw new IllegalStateException("Canvas must have a valid peer");
        }
        peer.disableBackgroundErase();
    }

With JOGL 2.4.0, the sun.awt.SunToolkit.disableBackgroundErase(Component component) is called :

    public void disableBackgroundErase(Component component) {
        disableBackgroundEraseImpl(component);
    }

    private void disableBackgroundEraseImpl(Component component) {
        AWTAccessor.getComponentAccessor().setBackgroundEraseDisabled(component, true);
    }

The regression on Windows platforms may be due to this change.