Erro de segurança ao chamar o browser

package java.desktop.capituloquinze;

import java.io.IOException;
import java.net.URISyntaxException;

public class Browser{

	public static java.awt.Desktop desktop;
	
	public static void main(String[] args) throws Exception {
		
		
		desktop = java.awt.Desktop.getDesktop();
		String url = "http://www.udemy.com";
		try {
			desktop.browse(new java.net.URI(url));
		} catch (IOException e) {
			System.out.println("Problemas de IO!!!");
			e.printStackTrace();
		} catch (URISyntaxException e) {
			System.out.println("Endereço de web: " + url + " inválido!!!");
			e.printStackTrace();
		}
		    		
	}
}