The following code produces a false positive "usel...

# intellij

[Klitos Kyriacou]

The following code produces a false positive "useless cast" warning for `as MutableList<String>`:

val map = (0..3).associateWithTo(mutableMapOf()) { ArrayList<String>() as MutableList<String> }
    val groups = listOf("a", "aa").groupByTo(map) { it.length }

Removing the "useless cast" causes a compiler error. Looking at existing logged issues, is this the same issue as KT-36281?

[Klitos Kyriacou]

(This is a bit contrived, by the way. I know there are other ways of writing it.)

[Anton Mefodichev]

@Klitos Kyriacou can you please create a new Youtrack ticket? Thank you!

[Klitos Kyriacou]

Done: https://youtrack.jetbrains.com/issue/KTIJ-27127/False-positive-useless-cast-warning