--- old/src/java.base/share/classes/java/util/Vector.java	2019-10-04 19:55:30.891734000 -0700
+++ new/src/java.base/share/classes/java/util/Vector.java	2019-10-04 19:55:30.675626000 -0700
@@ -102,6 +102,7 @@
      *
      * @serial
      */
+    @SuppressWarnings("serial") // Conditionally serializable
     protected Object[] elementData;
 
     /**