--- jsr166/src/main/java/util/PriorityQueue.java	2013/03/27 23:09:35	1.95
+++ jsr166/src/main/java/util/PriorityQueue.java	2014/12/31 07:54:13	1.102
@@ -24,9 +24,9 @@
  */
 
 package java.util;
+
 import java.util.function.Consumer;
 import java.util.stream.Stream;
-import java.util.stream.Streams;
 
 /**
  * An unbounded priority {@linkplain Queue queue} based on a priority heap.
@@ -66,7 +66,7 @@ import java.util.stream.Streams;
  * java.util.concurrent.PriorityBlockingQueue} class.
  *
  * <p>Implementation note: this implementation provides
- * O(log(n)) time for the enqueing and dequeing methods
+ * O(log(n)) time for the enqueuing and dequeuing methods
  * ({@code offer}, {@code poll}, {@code remove()} and {@code add});
  * linear time for the {@code remove(Object)} and {@code contains(Object)}
  * methods; and constant time for the retrieval methods
@@ -78,7 +78,7 @@ import java.util.stream.Streams;
  *
  * @since 1.5
  * @author Josh Bloch, Doug Lea
- * @param <E> the type of elements held in this collection
+ * @param <E> the type of elements held in this queue
  */
 public class PriorityQueue<E> extends AbstractQueue<E>
     implements java.io.Serializable {
@@ -100,7 +100,7 @@ public class PriorityQueue<E> extends Ab
     /**
      * The number of elements in the priority queue.
      */
-    private int size = 0;
+    private int size;
 
     /**
      * The comparator, or null if priority queue uses elements'
@@ -394,7 +394,7 @@ public class PriorityQueue<E> extends Ab
      * @return {@code true} if this queue contains the specified element
      */
     public boolean contains(Object o) {
-        return indexOf(o) != -1;
+        return indexOf(o) >= 0;
     }
 
     /**
@@ -477,7 +477,7 @@ public class PriorityQueue<E> extends Ab
          * Index (into queue array) of element to be returned by
          * subsequent call to next.
          */
-        private int cursor = 0;
+        private int cursor;
 
         /**
          * Index of element returned by most recent call to next,
@@ -497,13 +497,13 @@ public class PriorityQueue<E> extends Ab
          * We expect that most iterations, even those involving removals,
          * will not need to store elements in this field.
          */
-        private ArrayDeque<E> forgetMeNot = null;
+        private ArrayDeque<E> forgetMeNot;
 
         /**
          * Element returned by the most recent call to next iff that
          * element was drawn from the forgetMeNot list.
          */
-        private E lastRetElt = null;
+        private E lastRetElt;
 
         /**
          * The modCount value that the iterator believes that the backing
@@ -744,6 +744,7 @@ public class PriorityQueue<E> extends Ab
      *             emitted (int), followed by all of its elements
      *             (each an {@code Object}) in the proper order.
      * @param s the stream
+     * @throws java.io.IOException if an I/O error occurs
      */
     private void writeObject(java.io.ObjectOutputStream s)
         throws java.io.IOException {
@@ -763,6 +764,9 @@ public class PriorityQueue<E> extends Ab
      * (that is, deserializes it).
      *
      * @param s the stream
+     * @throws ClassNotFoundException if the class of a serialized object
+     *         could not be found
+     * @throws java.io.IOException if an I/O error occurs
      */
     private void readObject(java.io.ObjectInputStream s)
         throws java.io.IOException, ClassNotFoundException {