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kotlinlang

I've encountered quite a strange behaviour:
```val l1 = listOf(1) + listOf(2)
val l2 = listOf(1, 2)
println(l1::class) // prints java.util.ArrayList
println(l2::class) // prints java.util.Arrays$ArrayList```
Is this expected?

The reason why it bothers me is described here <https://kotlinlang.slack.com/archives/C9EJFT6DB/p1717662793347379>.

Expected, but not important. The type returned by `listOf()` is an implementation detail. In the unlikely event you care about the actual type of list, you can always instantiate the type you want directly. I explained more about the two different classes in my reply to your other thread.

```listOf(Unit)::class != listOf(*arrayOf(Unit))::class
```
this is an implementation detail you are not supposed to care about.