I don't know why but I do feel there is a gap here to empower backend developers to take over the full stack. ( I am one of the developers looking out for a good maintained, component rich, completely supported JVM java based FE framework )

One of my reasons not to pick Vaadin was that it was backed by a company rather than a open source community. ( this seems better now in terms of support )

I do see other JVM languages like Kotlin seeing some success here.

Did you guys see dart and flutter ? I am pretty sure Java can do a comeback in terms of compiling to JS and taking the power from react/typescript guys !