src/java.base/share/classes/java/util/concurrent/RecursiveTask.java

@@ -69,10 +69,11 @@
     private static final long serialVersionUID = 5232453952276485270L;
 
     /**
      * The result of the computation.
      */
+    @SuppressWarnings("serial") // Conditionally serializable
     V result;
 
     /**
      * The main computation performed by this task.
      * @return the result of the computation