source-changed-Mail

static class PopupAuthenticator extends Authenticator {
	public PasswordAuthentication getPasswordAuthentication() {
		AppConfiguration config = Application.get().getConfiguration();
		return new PasswordAuthentication(
			config.getProperty("app.mail.smtp.user"),
			config.getProperty("app.mail.smtp.password"));
	}
}
[...]
public Mail() {
	Properties props = new Properties();
	AppConfiguration config = Application.get().getConfiguration();
        [...]		
	if (null != mailhost) {
		props.put("mail.smtp.host", addr.getHostName());
		props.put("mail.smtp.auth", "true");
		Authenticator auth = new PopupAuthenticator();
		session = Session.getDefaultInstance(props, auth);
		// session.setDebug(true);          // Verbose!
	}
}