--- old/src/java.base/share/classes/java/io/InvalidObjectException.java	2019-08-27 17:26:51.902324386 -0700
+++ new/src/java.base/share/classes/java/io/InvalidObjectException.java	2019-08-27 17:26:51.710324386 -0700
@@ -37,6 +37,7 @@
  */
 public class InvalidObjectException extends ObjectStreamException {
 
+    @java.io.Serial
     private static final long serialVersionUID = 3233174318281839583L;
 
     /**