Ask HN: Does Java need a modern Java UI toolkit for desktop/web?

If Java had a modern UI toolkit to create & run apps natively on the desktop and in the browser, could it rescue Java Client development?

I've been working on SnapKit for several years (+) to rescue my apps from obscurity by deploying in the browser and it's gone reasonably well, so I'm wondering whether it could be more:

GitHub: https://github.com/reportmill/SnapKit

Demos: https://www.reportmill.com/snaptea/

jeff