When running SH source code in Eclipse, I'm getting this error which terminates the launch:

Apple AWT Internal Exception: NSWindow drag regions should only be invalidated on the Main Thread!
Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'NSWindow drag regions should only be invalidated on the Main Thread!'

Eclipse Version: 2020-06 (4.16.0)
AdoptOpen JDK 8
Mac OS 10.15
I am using VM arguments:
except under Java 7 / 8 and Mac OS X,
where VM arguments should be:
-Djava.ext.dirs=lib/java3d-1.6 -Djava.library.path=lib/java3d-1.6/macosx
-Djogamp.gluegen.UseTempJarCache=false

Any help is appreciated, thanks!