// "Replace Stream API chain with loop" "true-preview" import java.util.List; import java.util.stream.Collectors; import java.util.stream.Stream; public class Test { static String doProcess(String s) { return s; } public static void main(String[] args) { List list = Stream.of("a", "b", "c").map(Test::doProcess).collect(Collectors.toList()); System.out.println(list); } }