[Duda] carga informacion pero no sale mensaje de registro exitoso

Hola Jeisson, ¡espero que estés bien!

¿Podría mostrar lo que aparece en la consola?

Y mostrar también cómo está el código referente al botón mencionado.

¡Saludos y buenos estudios!

Hola, si claro

este es el error que me aparece en consola, mas abajo te coloco el codigo del boton guardar

Exception in thread "AWT-EventQueue-0" java.lang.RuntimeException: java.sql.SQLException: After end of result set
    at com.alura.jdbc.view.ControlDeStockFrame.guardar(ControlDeStockFrame.java:261)
    at com.alura.jdbc.view.ControlDeStockFrame$1.actionPerformed(ControlDeStockFrame.java:133)
    at java.desktop/javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1972)
    at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2313)
    at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:405)
    at java.desktop/javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:262)
    at java.desktop/javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:279)
    at java.desktop/java.awt.Component.processMouseEvent(Component.java:6620)
    at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3398)
    at java.desktop/java.awt.Component.processEvent(Component.java:6385)
    at java.desktop/java.awt.Container.processEvent(Container.java:2266)
    at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:4995)
    at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2324)
    at java.desktop/java.awt.Component.dispatchEvent(Component.java:4827)
    at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4948)
    at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4575)
    at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4516)
    at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2310)
    at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2780)
    at java.desktop/java.awt.Component.dispatchEvent(Component.java:4827)
    at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:775)
    at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:720)
    at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:714)
    at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:97)
    at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:747)
    at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745)
    at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
    at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:744)
    at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
Caused by: java.sql.SQLException: After end of result set
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129)
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89)
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63)
    at com.mysql.cj.jdbc.result.ResultSetImpl.checkRowPos(ResultSetImpl.java:517)
    at com.mysql.cj.jdbc.result.ResultSetImpl.getObject(ResultSetImpl.java:1314)
    at com.mysql.cj.jdbc.result.ResultSetImpl.getInt(ResultSetImpl.java:822)
    at com.alura.jdbc.controller.ProductoController.guardar(ProductoController.java:74)
    at com.alura.jdbc.view.ControlDeStockFrame.guardar(ControlDeStockFrame.java:259)
    ... 36 more

 public void guardar(Map<String, String> producto) throws SQLException {
        Connection con = new ConnectionFactory().recuperaConexion();
        Statement statement = (Statement) con.createStatement();

        statement.execute("INSERT INTO PRODUCTO(nombre, descripción, cantidad)"
                + " VALUES ('" + producto.get("NOMBRE") + "','"
                + producto.get("DESCRIPCIÓN") + "'," 
                + producto.get("CANTIDAD") + ")",
                Statement.RETURN_GENERATED_KEYS);


        ResultSet resulset = ((java.sql.Statement) statement).getGeneratedKeys();

        while(resulset.next());{
            System.out.println(
                    String.format(
                            "Fue insertado el producto de Id ",
                            resulset.getInt(1)));
        }



    }

}

Hola Brenda,

ya encontre el error, tenia un punto y coma de mas en el while.