// "Replace Stream API chain with loop" "true" import java.util.List; import java.util.stream.Collectors; import java.util.stream.Stream; public class Test { Stream names() { return Stream.of("foo", "bar"); } public static void main(String[] args) { List list = new Test().names().map(String::trim).filter(n -> !n.isEmpty()) .collect(Collectors.toList()); } }