[iamsb]

Spring Boot Kotlin is worth giving a go. It has rapid prototyping abilities, but underlying Java promise of easy refactoring, great tooling. I recently refactored entire frontend and parts of backend code without ever having to restart server.

[nobleach]

While I wouldn't exactly put it in the Rails category, I love Spring Boot far more. I love Micronaut even MORE than Spring Boot... but that's another story.

Spring Boot doesn't tick ALL the Rails boxes (Scaffolding a backend CRUD admin interface, all of the complex templating stuff - although Thymeleaf is pretty darn good) I'd put my money on it being more maintainable a year later. Spring as an ecosystem is huge, so there's always a strong possibility someone else has already solved the problem you're trying to solve. The tooling is pretty fantastic as well. Kotlin as a language is just fantastic.

[fareesh]

How is the ecosystem? For example - if I want to add auth, social login, profile picture and admin dashboard CRUD, are there mature packages that can be leveraged for these features?

[iamsb]

It has decent support. It is based on sprint which has had social auth for many years now. Plus good third party support like okta.

Note to self - dont post about Java on HN, people downvote even non hateful comments!