A modern programming language that makes developers happier.

kotlinlang

If there isn’t a template that fits out of the box, rolling your own isn’t too hard

And make sure you.use the openapi generator and not the one smartbear now has.

Supports v2 and v3 with same tool, unlike smartbear offering. Other advantages too.
 
<https://openapi-generator.tech>


Sorry, didn’t look at the language list. Just know the underlying generator is better, and more flexible, and they do cover a fair bit. Yes, doesn’t look like they have a Java one either, as you could use that too.

Doesn’t look like the Smartbear one does, either. So I’ve been no help…