ADDITIONAL SYSTEM INFORMATION :
WINDOWS 10 - JRE8u321

A DESCRIPTION OF THE PROBLEM :
HCAPTCHA considere the Java WEBBrowser as a robot and loops on the captcha. The captcha works well, but the page I want to reach never appears !


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Execute script

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
RECAPTCHA WORKS FINE, BUT HCAPTCHA CONSIDERE JAVA WEBBROWSER AS ROBOT ! LOOP ON THE HCAPTCHA.

---------- BEGIN SOURCE ----------
package _TEST;

import java.awt.BorderLayout;
import java.io.File;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import javax.swing.JFrame;
import javax.swing.JPanel;

import com.sun.javafx.application.PlatformImpl;

import javafx.application.Platform;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.ObservableList;
import javafx.concurrent.Worker.State;
import javafx.embed.swing.JFXPanel;
import javafx.scene.Group;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javafx.stage.Stage;

class CL_SwingFXWebView extends JPanel {  

	private static JFrame f = null;
	
	public static void main(String[] args) {
        f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JPanel p = new CL_SwingFXWebView();
        f.getContentPane().add(p);
        f.setSize(800, 600);
        f.setVisible(true);
        
        ((CL_SwingFXWebView) p).load("https://www.pagesjaunes.fr/");
    }

	private static final long serialVersionUID = 8990771757800321056L;

	private Stage stage = null;  
	private WebView browser = null;  
	private JFXPanel jfxPanel = null;
	private WebEngine webEngine = null;  

	public CL_SwingFXWebView() {
		jfxPanel = new JFXPanel();  

		PlatformImpl.startup(new Runnable() {  

			public void run() {  
				stage = new Stage();
				Group root = new Group();  
				Scene scene = new Scene(root);
				stage.setScene(scene);  

				browser = new WebView();
				webEngine = browser.getEngine();
				webEngine.setUserDataDirectory(new File("."));
				//webEngine.setUserAgent("use required / intended UA string");  //NOT WORKING !
				//webEngine.setUserAgent("Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.52 Safari/536.5");
				webEngine.setJavaScriptEnabled(true);

				TrustManager[] trustAllCerts = new TrustManager[] {new X509TrustManager() {

					public void checkClientTrusted(java.security.cert.X509Certificate[] arg0, String arg1) throws java.security.cert.CertificateException {}

					public void checkServerTrusted(java.security.cert.X509Certificate[] chain, String authType) throws java.security.cert.CertificateException {}

					public java.security.cert.X509Certificate[] getAcceptedIssuers() {
						return null;
					}
				}};

				SSLContext sc = null;
				try {
					sc = SSLContext.getInstance("SSL");
					sc.init(null, trustAllCerts, new java.security.SecureRandom());
					HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
				} catch (NoSuchAlgorithmException e) {
					e.printStackTrace();
				} catch (KeyManagementException e) {
					e.printStackTrace();
				}

				HostnameVerifier allHostsValid = new HostnameVerifier() {
					public boolean verify(String hostname, SSLSession session) {
						return true;
					}
				};

				HttpsURLConnection.setDefaultHostnameVerifier(allHostsValid);

				webEngine.getLoadWorker().stateProperty().addListener(new ChangeListener<State>() {

					public void changed(ObservableValue<? extends State> ov, State oldState, State newState) {

						if (newState == State.RUNNING) {
						}

						if (newState == State.SUCCEEDED) {
							f.setTitle(webEngine.getLocation());
						}
					}
				});

				webEngine.getLoadWorker().progressProperty().addListener(new ChangeListener<Number>() {

					public void changed(ObservableValue<? extends Number> ov, Number oldNumber, Number newNumber) {
					}
				});

				ObservableList<Node> children = root.getChildren();
				children.add(browser);                     

				jfxPanel.setScene(scene);  
			}  
		});

		setLayout(new BorderLayout());  
		add(jfxPanel, BorderLayout.CENTER);
	}       

	public void setPrefDimension(double _dWidth, double _dHeight) {
		if (browser != null) { browser.setPrefWidth(_dWidth);browser.setPrefHeight(_dHeight); }
	}

	public WebEngine getEngine() {
		return webEngine;
	}

	public void load(final String _sURL) {

		Platform.runLater(new Runnable() {

			public void run() {
				webEngine.load(_sURL);
			}
		});
	}

	public void reloadPage() {
		Platform.runLater(new Runnable() {

			public void run() {
				webEngine.reload();
			}
		});
	}

	public void navigateBack() {
		Platform.runLater(new Runnable() {

			public void run() {
				webEngine.executeScript("history.back()");
			}
		});
	}

	public void navigateForward() {
		Platform.runLater(new Runnable() {

			public void run() {
				webEngine.executeScript("history.forward()");
			}
		});
	}

	public void stopLoading() {

		Platform.runLater(new Runnable() {

			public void run() {
				webEngine.executeScript("window.stop()"); 
			}
		});
	}

	public String getHTMLContent() {
		return webEngine.executeScript("document.documentElement.innerHTML").toString();
	}

	public String getURL() {
		return webEngine.getLocation();
	}
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
RECAPTCHA WORKS FINE, BUT HCAPTCHA BUGS !

FREQUENCY : always