// "Fix all 'Simplify stream API call chains' problems in file" "false" import java.util.EnumSet; import java.util.List; import static java.util.stream.Collectors.toList; public class Tests { interface HasCode { default String getCode() {return this.toString();} } enum Status implements HasCode { Approved, Pending, Stored } void test() { List list = EnumSet.of(Status.Approved, Status.Pending, Status.Stored, Status.Approved).stream() .map(HasCode::getCode).collect(toList()); } }