class InstanceCertManager {

    void updateX509CertificateSigner() {
        if (caX509CertificateSigner == null) {
            caX509CertificateSigner = getCACertificate();
        }
    }

    public  InstanceCertManager(final PrivateKeyStore keyStore, Authorizer authorizer, HostnameResolver hostnameResolver,
            boolean readOnlyMode);

}