I have to override a Java method that uses an `@No...

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[tschuchort]

I have to override a Java method that uses an @NonNull annotation on a parameter even though documentation (and common sense) says that it can be null. If I make the same parameter nullable in my overriding Kotlin method, the compiler complains to me that I'm not overriding. But if I don't, then the function will crash at the hidden parameter assertion that is generated automatically. How do I tell the compiler "shut up, I know what to do"? Can I disable null-assertions for just this method?

[Kirill Zhukov]

You have to override as non null. It seems though that your Java method should be @Nullable, so if have access to it you can fix that.

[tschuchort]

I don't have access, that's the problem

[tschuchort]

But the compiler generates null checks for that argument, so if it's null it will crash

[Kirill Zhukov]

So override as non null? Do you have to pass null to the API?

[Kirill Zhukov]

Is that some Android API btw?

[tschuchort]

It's the Timber logging library

[tschuchort]

I'm not passing null to the library. It is passing null to me. So if I override with a non-nullable parameter, it will crash

[Kirill Zhukov]

Timber should be in Kotlin now…

[tschuchort]

Last release was 2018...

[Kirill Zhukov]

yeah, it’s in Kotlin now

[tschuchort]

Not released though. But apparently they changed it so the argument is actually never null. Just the docs are outdated

[tschuchort]

Annoyingly there was a PR 2 years ago to fix this but never got merged due to bikeshedding 😑

[Kirill Zhukov]

4.7.1 is the latest released version, it has Timber written in Kotlin. What’s the specific API?

[tschuchort]

Timber.Tree.log(int priority, @Nullable String tag, @NotNull String message, @Nullable Throwable t)

[tschuchort]

My dependency in the build.gradle file is 4.7.1 and that file is still Java when I go to it

[tschuchort]

When I browse the repo at 4.7.1 tag it's still Java too. The release is just too old to include the Kotlin port it seems

[Kirill Zhukov]

Ugh, you are right, it’s not released yet 😕

[tjohnn]

The owner of timber is in this channel.. probably he could find time to help. @jw

[tschuchort]

If only the docs are outdated then there's no need to update it right now.