i managed it by doing this

internal class MapEntry<K, V>(override val key: K, override val value: V) : Map.Entry<K, V>
internal fun <K, V> Pair<K, V>.toEntry() = MapEntry(first, second)

you could

import java.util.AbstractMap

and avoid to create your own entry class:

... = AbstractMap.SimpleEntry(first, second)

Didn't see that one Thanks 👍

you’re welcome