--- old/src/share/classes/java/util/function/LongFunction.java	2012-11-26 17:53:07.899300296 -0800
+++ new/src/share/classes/java/util/function/LongFunction.java	2012-11-26 17:53:07.695300287 -0800
@@ -32,7 +32,10 @@
  *
  * @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}