Настройка прокси внутри Java приложения

как то так

    static void SetProxy(){
        System.setProperty("java.net.preferIPv4Stack" , "true");
        System.setProperty("proxySet", "true");   //Obsolete ?
        System.setProperty("http.proxyHost", "proxy.adress.ru");
        System.setProperty("http.proxyPort", "8080");
        System.setProperty("https.proxyHost", "proxy.adress.ru");
        System.setProperty("https.proxyPort", "8080");
       Authenticator.setDefault(new Authenticator() {
                        protected PasswordAuthentication getPasswordAuthentication() {
                        return new PasswordAuthentication("domain\\username","password".toCharArray());
                        }
        });
}