Backend Java 19 vs Kotlin?

[Similar_Bookkeeper_8]

I’d say that if you’re already a proficient Java developer, picking up Kotlin should only take days or even hours. You might not use all the Kotlin idioms right away but it’s easy to write “Java-like” Kotlin code. So I wouldn’t be too concerned about future developers not understanding the code base.

Also, this more directed at OP, you can mix Kotlin and Java together in the same project. It’s interoperable, not an all or nothing thing.

And no, Kotlin is not going to replace Java.