Has anyone tried Kotlin with Java 11-ea? I’m getti...

# announcements

[pniederw]

Has anyone tried Kotlin with Java 11-ea? I’m getting a number of warnings and errors, apparently because Java has added stdlib members that conflict with Kotlin stdlib extension members.

[ilya.gorbunov]

Could you name some?

[Olekss]

I think this is strategy how java could screw kotlin over

[Hamza]

Or we just don't target new java version

[Hamza]

Ooh they could add a new feature where if any functions, etc overlap with code, it allows you to use annotations to specify your target method

[pniederw]

@ilya.gorbunov String.isBlank(), String.repeat(), String.lines(). The kotlinc error message is difficult to understand. I don’t understand why it says these methods are deprecated.

Warning:(69, 19) Kotlin: 'repeat(Int): String!' is deprecated. This member is not fully supported by Kotlin compiler, so it may be absent or have different signature in next major version

[pniederw]

there’s something to be said for requiring explicit import of all extension members and have them win over the class’ own members. IDE could provide a visual clue in such cases.

[ilya.gorbunov]

Are you sure the receiver is kotlin.String and not java.lang.String?

[ilya.gorbunov]

Ok, I've reproduced it with 11-ea, will check with team.