As the primary developer of a large sophisticated Javascript app (https://shaxpir.com), working with Javascript is an ongoing nuisance, and I'd love to switch the majority of my development to a type-safe language.
I've been considering a switch to TypeScript, but with 17 years of experience as a back-end Java developer, my natural first-choice of language is Java.
But this is a modern webapp, so I'm not really interested in seeing Console/Swing/AWT demos. I'm much more interested in seeing demos that integrate Java code with native Javascript dependencies, especially around DOM manipulation and browser event handling.
I want to rewrite all my own business logic in Java, while continuing to integrate with my existing dependencies in the browser (JQuery, Bootstrap, Quill, etc).
A demo like that would be very compelling to me!