--- old/src/java.base/share/classes/java/nio/file/NotLinkException.java	2019-08-27 17:28:17.138324386 -0700
+++ new/src/java.base/share/classes/java/nio/file/NotLinkException.java	2019-08-27 17:28:16.974324386 -0700
@@ -35,6 +35,7 @@
 public class NotLinkException
     extends FileSystemException
 {
+    @java.io.Serial
     static final long serialVersionUID = -388655596416518021L;
 
     /**