Kotlin & Java+Lombok interop

Support
1

I’m wondering if it’s possible to have Kotlin recognise Lombok annotated Java code?

For example, given the following class:

@Data
public class Person {
   private String firstName
}

In Kotlin, if I try to invoke person.firstName,I get an error:

Error:(30, 20) Kotlin: Cannot access ‘firstName’: it is ‘private’ in ‘Person’

I assume that this is because at the time when the Kotlin/Java interop runs, Lombok hasn’t yet instrumented the code.

Are there any workarounds to this?

5 Likes
2

If you put Java and Kotlin code in different modules, it should work. Rationale: Kotlin will see whatever declarations get to the byte code, but it can’t see whatever Lombok generates on-the-fly in the source code

3

Well we use Java and Kotlin in the same module and I cannot imagine splitting it between modules as we are slowly rewriting everything to Koltin. I tried to add the kapt preprocessor, but it still complains that cannot access “field”: it is private in “Entity”.

4 Likes
4

I guess most straight way will be convert all java class to kotlin