props.put(entry.getKey(), entry.getValue());
            }
        }
        try {
            final Session mailSession = Session.getDefaultInstance(props, null);
            final MimeMessage message = new MimeMessage(mailSession, in);
            final String content = getBodyText(message);

    protected final HttpTransport httpTransport = new NetHttpTransport();

    /** JSON factory for OpenID Connect response parsing. */
    protected final JsonFactory jsonFactory = GsonFactory.getDefaultInstance();

    /**
     * Initializes the OpenID Connect authenticator.
     */
    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {