--- old/src/java.base/share/classes/java/util/zip/ZipError.java	2019-08-27 17:29:19.918324386 -0700
+++ new/src/java.base/share/classes/java/util/zip/ZipError.java	2019-08-27 17:29:19.718324386 -0700
@@ -32,6 +32,7 @@
  * @since   1.6
  */
 public class ZipError extends InternalError {
+    @java.io.Serial
     private static final long serialVersionUID = 853973422266861979L;
 
     /**