src/java.base/share/classes/java/lang/EnumConstantNotPresentException.java

@@ -36,10 +36,11 @@
  * @see     java.lang.reflect.AnnotatedElement
  * @since   1.5
  */
 @SuppressWarnings("rawtypes") /* rawtypes are part of the public api */
 public class EnumConstantNotPresentException extends RuntimeException {
+    @java.io.Serial
     private static final long serialVersionUID = -6046998521960521108L;
 
     /**
      * The type of the missing enum constant.
      */