--- old/src/java.base/share/classes/java/lang/module/ResolutionException.java	2019-08-27 17:27:48.690324386 -0700
+++ new/src/java.base/share/classes/java/lang/module/ResolutionException.java	2019-08-27 17:27:48.502324386 -0700
@@ -34,6 +34,7 @@
  * @spec JPMS
  */
 public class ResolutionException extends RuntimeException {
+    @java.io.Serial
     private static final long serialVersionUID = -1031186845316729450L;
 
     /**