} catch (CertificateException ce) { log.error("Can't generating CRL.", ce);  return null; }
}
    public X509CRL getCRL() {        X509CRL crl = null;        try {            String b64Crl = getBase64Crl();            crl = CertTools.getCRLfromByteArray(Base64.decode(b64Crl.getBytes()));        } catch (IOException ioe) {            log.error("Can't decode CRL.", ioe);            return null;        } catch (CRLException ce) {            log.error("Can't decode CRL.", ce);            return null;        } catch (CertificateException ce) {            log.error("Can't generating CRL.", ce);            return null;        }        return crl;    }