Hello I have a question relating inner classes in ...

# android

[Aurelian Ticușan]

Hello
I have a question relating inner classes in Java I'm having troubles with.
I have a utility class in which I hold various enum classes. There is no problem accessing them in Java classes, but when I try to access them in a Kotlin class, I get Unresolved reference: UtilityClass
Utility class looks like this

public final class UtilityClass {

    private UtilityClass() {
        // Utility class
    }

    public enum FirstEnum {
        FIRST_OPTION, SECOND_OPTION, THIRD_OPTION, NONE
    }
}

While the the data class in Kotlin is as follows

data class KotlinClass(val option: UtilityClass.FirstEnum = UtilityClass.FirstEnum.NONE)

Does anyone maybe know why I get "Unresolved reference: UtilityClass" trying to access the enum from my utility class? Both classes are in same package, so no imports required, I've tried moving either class in another package, but the issue persists
I had no luck finding a solution for this, I can't find anything even remotely similar to this problem

[Dustin Lam]

Your utility class isn't static

[Aurelian Ticușan]

Yes, but I cannot make a top level class static

[Dustin Lam]

Oh, I thought it was related to inner class, but actually I just tried this out and it works fine O.o

[Aurelian Ticușan]

For me it doesn't work. I have kotlin version 1.3.61, although I don't think it's relevant

[Dustin Lam]

I tried on 1.3.72

[Aurelian Ticușan]

I tried this on a different project and it worked. Maybe it's a problem with the project, but I have no idea what exactly.

[Cody Engel]

If you are trying to write a utility class in Kotlin you'd probably have better luck defining it as an object instead of a class

[Aurelian Ticușan]

Yes, but the Utility class should remain Java class. That's the problem, having an kotlin object as the utility class works, I get the error when the utility class is Java class

[Cody Engel]

What's the stack trace? The unresolved reference makes it sound like the import is missing. I recreated this on my end and it was working for me

[Aurelian Ticușan]

There shouldn't be import problems, as both classes are from same package. This is the stacktrace

[Aurelian Ticușan]

Untitled

Untitled

[gildor]

It’s not an actuall compilation error, it’s gradle stacktrace, check your build logs

[Aurelian Ticușan]

But the build logs says the error I don't understand ,*Unresolved reference: UtilityClass"

[gildor]

Okay, make sense

[gildor]

so it cannot resolve this class

[gildor]

could you show screenshot from IDE? is it resolved?

[gildor]

Maybe some another UtilityClass is imported, so it doesn’t see your default package import

[gildor]

Because code which you show it fine and it should work.
Maybe you could reporoduce on a sample project

[gildor]

also, you sure that your Kotlin class has package itself?