--- old/src/java.base/share/classes/java/lang/Error.java	2019-08-27 17:27:10.770324386 -0700
+++ new/src/java.base/share/classes/java/lang/Error.java	2019-08-27 17:27:10.522324386 -0700
@@ -47,6 +47,7 @@
  * @since   1.0
  */
 public class Error extends Throwable {
+    @java.io.Serial
     static final long serialVersionUID = 4980196508277280342L;
 
     /**