@@ -46,10 +46,11 @@ * @author Laurence P. G. Cable * @since 1.1 */ public class TooManyListenersException extends Exception { + @java.io.Serial private static final long serialVersionUID = 5074640544770687831L; /** * Constructs a TooManyListenersException with no detail message. * A detail message is a String that describes this particular exception.