src/java.base/share/classes/java/io/NotSerializableException.java

*** 33,42 ****
--- 33,43 ----
   * @author  unascribed
   * @since   1.1
   */
  public class NotSerializableException extends ObjectStreamException {
  
+     @java.io.Serial
      private static final long serialVersionUID = 2906642554793891381L;
  
      /**
       * Constructs a NotSerializableException object with message string.
       *