| import java.util.List; |
| import java.util.function.Supplier; |
| import java.util.stream.Stream; |
| |
| class Test { |
| |
| private static void list(List<? extends CharSequence> l) { |
| Stream<? extends CharSequence> str = map(() -> l.get(0)); |
| Stream<? extends CharSequence> str1 = map1(() -> l.get(0)); |
| Stream<? extends CharSequence> str2 = map1(() -> l.get(0)); |
| } |
| |
| static <M> Stream<M> map (Supplier<? extends M> mapper) { return null;} |
| static <M> Stream<M> map1(Supplier<? super M> mapper) { return null;} |
| static <M> Stream<M> map2(Supplier<M> mapper) { return null;} |
| } |