class XSUserInfoAdapter implements XSUserInfo {

	@Override
	/**
	 * "ext_attr": { "enhancer": "XSUAA", "zdn": "paas-subdomain" },
	 */
	public String getSubdomain() {
		return Optional.ofNullable(getExternalAttribute(EXTERNAL_ATTRIBUTE_ZDN)).orElse(null);
	}

	public  XSUserInfoAdapter(Object accessToken);
	public  XSUserInfoAdapter(AccessToken accessToken);
	  XSUserInfoAdapter(Object accessToken, OAuth2ServiceConfiguration configuration);

}