class Auth0Jwt extends DefaultOAuthJwtAccessToken {

    @Override
    public String getCertificateThumbprint() {
        LinkedHashMap<?, ?> certConf = null;
        try {
            certConf = this.body.get(Auth0Jwt.claimConfirm, LinkedHashMap.class);
            if (certConf == null) {
                return null;
            }
        } catch (RequiredTypeException e) {
            return null;
        }
        return (String) certConf.get(OAuthJwtAccessToken.CLAIM_CONFIRM_X509_HASH);
    }

    public  Auth0Jwt(Jws<Claims> jws);

}