--- jsr166/src/main/java/util/Vector.java	2016/12/21 05:15:08	1.43
+++ jsr166/src/main/java/util/Vector.java	2016/12/24 19:32:07	1.44
@@ -1454,9 +1454,8 @@ public class Vector<E>
 
         @SuppressWarnings("unchecked")
         public boolean tryAdvance(Consumer<? super E> action) {
+            Objects.requireNonNull(action);
             int i;
-            if (action == null)
-                throw new NullPointerException();
             if (getFence() > (i = index)) {
                 index = i + 1;
                 action.accept((E)array[i]);
@@ -1469,8 +1468,7 @@ public class Vector<E>
 
         @SuppressWarnings("unchecked")
         public void forEachRemaining(Consumer<? super E> action) {
-            if (action == null)
-                throw new NullPointerException();
+            Objects.requireNonNull(action);
             final int hi = getFence();
             final Object[] a = array;
             int i;