src/java.base/share/classes/java/util/InputMismatchException.java

@@ -34,10 +34,11 @@
  * @see     java.util.Scanner
  * @since   1.5
  */
 public
 class InputMismatchException extends NoSuchElementException {
+    @java.io.Serial
     private static final long serialVersionUID = 8811230760997066428L;
 
     /**
      * Constructs an {@code InputMismatchException} with {@code null}
      * as its error message string.