Hi guys, why this happens? And what is the right w...

# announcements

[SrSouza]

Hi guys, why this happens? And what is the right way to fix it?

[diesieben07]

Your method signature says it will return a Class<C>, whatever C might be. The compiler cannot prove that e.g. NioServerSocketChannel will be a C, so it provides an error.

[diesieben07]

You probably want Class<out ServerSocketChannel> as your return type.

[marstran]

You can do this:

fun pickBestChannel(): Class<out ServerSocketChannel> {
  // ...
}

[louiscad]

guys -> folks (because guys in androcentric while Kotlin is not)