Java invariance in Kotlin 4

java_invariance_in_kotlin_4.kt

fun bar(consumer: Consumer<in String>) {
    if (consumer is Subject) {
        val value: String = consumer.value // Compilation error
    }
}

fun foo(consumer: Consumer<CharSequence>) {
    bar(consumer)
}

interface Subject<T> : Consumer<T> {
    val value: T
}