wengine does not load web page with loadcontent

Very good, I have a problem I am making an application to obtain and treat maps on google maps. My problem is that if I make a loadconten of a webengine the page does not load, that has to be explained a bit more

If I make a Java program with its corresponding main everything works fine, it shows a frame and in it the JavaScrip code will appear, if I remove that main and I do a library I compile it in a Jar to call it from a Bean this does not work, that is, everything is done correctly but the webengine does not show the content that happened to it

import java.awt.*;
import javafx.stage.Modality;
import javafx.stage.Stage;

public class VentanaSiriusBrowser extends javax.swing.JFrame {
    private static final long serialVersionUID = 1L;
    public VentanaSiriusBrowser(String Uri,int AnchoVentana,int AltoVentana) {
        initComponents(AnchoVentana,AltoVentana);
        SiriusBrowser browser = new SiriusBrowser();
        browser.loadURL(Uri);

       // browser.setBounds(1, 1, jPanel1.getWidth() - 1, jPanel1.getHeight() - 1);
         browser.setBounds(1, 1, AnchoVentana, AltoVentana );
        jPanel1.add(browser);
    }

    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents(int AnchoVentana,int AltoVentana) {

       jPanel1 = new javax.swing.JPanel();
       setTitle("Sirius Visualizador de Mapas");
       setResizable(false);

       jPanel1.setPreferredSize(new java.awt.Dimension(AnchoVentana, AltoVentana));
       jPanel1.setAutoscrolls(true);


       jPanel1.setBorder(javax.swing.BorderFactory.createEtchedBorder());
       //jPanel1.setBounds(PosX, PosY, ancho-Resto, alto-Resto);
       jPanel1.setLayout(new FlowLayout(FlowLayout.CENTER));

       jPanel1.setBorder(javax.swing.BorderFactory.createEtchedBorder());
       jPanel1.setLayout(new FlowLayout(FlowLayout.CENTER));

     javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 676, Short.MAX_VALUE)
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 474, Short.MAX_VALUE)
        );

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addContainerGap())
        );
        pack();
    }// </editor-fold>//GEN-END:initComponents
     // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JPanel jPanel1;
    // End of variables declaration//GEN-END:variables
}



import javafx.application.Platform;
import javafx.embed.swing.JFXPanel;
import javafx.scene.Scene;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;

public class SiriusBrowser extends JFXPanel {

   private static final long serialVersionUID = 1L;
   private WebEngine engine;

    //Constructor de la clase
    public SiriusBrowser() {
        Platform.runLater(new Runnable() {
            @Override
            public void run() {
                WebView view = new WebView();
                engine = view.getEngine();
                setScene(new Scene(view));
            }
        });
        setVisible(true);
    }
//Método para cargar la URL de la página web

    public void loadURL(final String url) {
        Platform.runLater(new Runnable() {
            @Override
            public void run() {
                engine.setJavaScriptEnabled(true);
                System.out.println("=========================================================");
                System.out.println(url);
                System.out.println("========================================================="); 
                engine.loadContent(url); 


            }
        });
    }
 }