Posted by bogdanni on Apr 22, 2019; 9:06pm
URL: https://forum.jogamp.org/NewtCanvasAWT-in-JSplitPane-on-macOS-tp4039717p4039723.html

Btw, other JSplitPane issues (e.g., similar to bug 1378, but for NewtCanvasAWT) gave me lots of trouble over the years.
I notice them coming back in Java 13 which I believe is built with the Mojave SDK.
I maintain a list of patches at https://github.com/Helioviewer-Project/JHelioviewer-SWHV/commits/master/extra/jogl.patch (most of those are now fixed in trunk).