--- jsr166/src/main/java/util/PriorityQueue.java	2016/12/02 07:11:36	1.115
+++ jsr166/src/main/java/util/PriorityQueue.java	2016/12/29 23:14:34	1.118
@@ -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());
@@ -631,7 +633,7 @@ public class PriorityQueue<E> extends Ab
      * promoting x up the tree until it is greater than or equal to
      * its parent, or is the root.
      *
-     * To simplify and speed up coercions and comparisons. the
+     * To simplify and speed up coercions and comparisons, the
      * Comparable and Comparator versions are separated into different
      * methods that are otherwise identical. (Similarly for siftDown.)
      *
@@ -732,12 +734,12 @@ public class PriorityQueue<E> extends Ab
     @SuppressWarnings("unchecked")
     private void heapify() {
         final Object[] es = queue;
-        final int half = (size >>> 1) - 1;
+        int i = (size >>> 1) - 1;
         if (comparator == null)
-            for (int i = half; i >= 0; i--)
+            for (; i >= 0; i--)
                 siftDownComparable(i, (E) es[i]);
         else
-            for (int i = half; i >= 0; i--)
+            for (; i >= 0; i--)
                 siftDownUsingComparator(i, (E) es[i]);
     }