--- old/src/java.base/share/classes/java/util/UUID.java	2019-08-27 17:29:15.522324386 -0700
+++ new/src/java.base/share/classes/java/util/UUID.java	2019-08-27 17:29:15.326324386 -0700
@@ -75,6 +75,7 @@
     /**
      * Explicit serialVersionUID for interoperability.
      */
+    @java.io.Serial
     private static final long serialVersionUID = -4856846361193249489L;
 
     /*