--- old/src/java.base/share/classes/sun/reflect/annotation/ExceptionProxy.java	2019-08-27 17:29:36.886324386 -0700
+++ new/src/java.base/share/classes/sun/reflect/annotation/ExceptionProxy.java	2019-08-27 17:29:36.710324386 -0700
@@ -37,6 +37,7 @@
  * @since   1.5
  */
 public abstract class ExceptionProxy implements java.io.Serializable {
+    @java.io.Serial
     private static final long serialVersionUID = 7241930048386631401L;
     protected abstract RuntimeException generateException();
 }