src/java.base/share/classes/java/nio/file/attribute/UserPrincipalNotFoundException.java

@@ -35,10 +35,11 @@
  */
 
 public class UserPrincipalNotFoundException
     extends IOException
 {
+    @java.io.Serial
     static final long serialVersionUID = -5369283889045833024L;
 
     private final String name;
 
     /**