kotlin-stdlib / kotlin.streams / java.util.stream.Stream Extensions for java.util.stream.Stream JVM JRE8 1.2 asSequence Creates a Sequence instance that wraps the original stream iterating through its elements. fun <T> Stream<T>.asSequence(): Sequence<T> JVM JRE8 1.2 toList Returns a List containing all elements produced by this stream. fun <T> Stream<T>.toList(): List<T>