--- jsr166/src/main/java/util/PriorityQueue.java	2019/08/30 18:05:39	1.132
+++ jsr166/src/main/java/util/PriorityQueue.java	2019/10/10 16:53:08	1.133
@@ -111,6 +111,7 @@ public class PriorityQueue<E> extends Ab
      * The comparator, or null if priority queue uses elements'
      * natural ordering.
      */
+    @SuppressWarnings("serial") // Conditionally serializable
     private final Comparator<? super E> comparator;
 
     /**