Certificate clientCert = Certificate.getBySerial(serial);
CertificateOwner u = CertificateOwner.getByEnabledSerial(serial);
if (u == null || clientCert == null) {
Certificate clientCert = Certificate.getBySerial(serial);
CertificateOwner u = CertificateOwner.getByEnabledSerial(serial);
if (u == null || clientCert == null) {