--- old/src/java.base/share/classes/java/util/MissingFormatArgumentException.java	2019-08-27 17:29:07.474324386 -0700
+++ new/src/java.base/share/classes/java/util/MissingFormatArgumentException.java	2019-08-27 17:29:07.306324386 -0700
@@ -38,6 +38,7 @@
  */
 public class MissingFormatArgumentException extends IllegalFormatException {
 
+    @java.io.Serial
     private static final long serialVersionUID = 19190115L;
 
     private String s;