// "Merge 'boxed' call and 'forEach' call" "true" import java.util.List; import java.util.stream.IntStream; public class Main { public static void test(List<CharSequence> list) { list.stream().map(cs -> (String)cs).mapToInt(String::length).asLongStream().map(x -> x*2).forEach(l -> System.out.println((Long) l)); } }