--- old/src/java.base/share/classes/java/lang/module/FindException.java	2019-08-27 17:27:47.730324386 -0700
+++ new/src/java.base/share/classes/java/lang/module/FindException.java	2019-08-27 17:27:47.534324386 -0700
@@ -37,6 +37,7 @@
  */
 
 public class FindException extends RuntimeException {
+    @java.io.Serial
     private static final long serialVersionUID = -5817081036963388391L;
 
     /**