src/share/classes/java/util/function/LongFunction.java

rev 6137 : 8004015: Add Extends and deaults for basic functional interface types
Summary: Adds the appropriate extends and default methods for  core functional interfaces used by the JSR335 libraries.
Reviewed-by: duke

@@ -30,11 +30,14 @@
  *
  * @param <T> the type of input objects to the function
  *
  * @since 1.8
  */
-public interface LongFunction<T> {
+public interface LongFunction<T> extends Function<T, Long> {
+
+    @Override
+    public default Long apply(T t) { return applyAsLong(t); }
 
     /**
      * Apply a function to the input object yielding an appropriate {@code long}
      * value.
      *