--- old/src/java.base/share/classes/jdk/internal/org/xml/sax/SAXNotRecognizedException.java	2019-08-27 17:29:25.858324386 -0700
+++ new/src/java.base/share/classes/jdk/internal/org/xml/sax/SAXNotRecognizedException.java	2019-08-27 17:29:25.670324386 -0700
@@ -73,6 +73,7 @@
     }
 
     // Added serialVersionUID to preserve binary compatibility
+    @java.io.Serial
     static final long serialVersionUID = 5440506620509557213L;
 }