final String authUser = "asaf";
        final String authPassword = "1234";

        Authenticator.setDefault(
                new Authenticator() {
                    @Override
                    public PasswordAuthentication getPasswordAuthentication() {
                        return new PasswordAuthentication(
                                authUser, authPassword.toCharArray());
                    }
                }
        );

        System.setProperty("https.proxyUser", authUser);
        System.setProperty("https.proxyPassword", authPassword);
        System.setProperty("http.proxyUser", authUser);
        System.setProperty("http.proxyPassword", authPassword);