--- jsr166/src/main/java/util/PriorityQueue.java	2016/12/18 21:52:10	1.116
+++ jsr166/src/main/java/util/PriorityQueue.java	2016/12/20 22:37:31	1.117
@@ -522,6 +522,8 @@ public class PriorityQueue<E> extends Ab
          */
         private int expectedModCount = modCount;
 
+        Itr() {}                        // prevent access constructor creation
+
         public boolean hasNext() {
             return cursor < size ||
                 (forgetMeNot != null && !forgetMeNot.isEmpty());