Can I deprecate or warn if a `fun` in used in kotlin but issue no warning in java? We created a “bri...

# getting-started

[frogger]

Can I deprecate or warn if a fun in used in kotlin but issue no warning in java? We created a “bridge function” for java which should be avoided in kotlin code. I thought it would be nice to show a warning if used accidentally in kotlin code.

[Rob Elliot]

You could call it something like doNotCallFromKotlin and then use @JvmName to give it a decent name when called from Java?

[frogger]

woot, that is a nice trick 👍

[ephemient]

also a @RequiresOptIn annotation can be used to guard against Kotlin usage, without affecting Java callers (although there may be an IDE warning in the future https://youtrack.jetbrains.com/issue/KTIJ-15207)

[Youssef Shoaib [MOD]]

You can do @Deprecated which only deprecates on Kotlin. In fact, Deprecated has an option of WarningLevel.ERROR (can't remember the exact syntax and I'm on mobile lol)

[ephemient]

IDEA is clever enough to warn when using deprecated Kotlin APIs in Java, but as long as you can ignore that…