public X509Certificate convertCertificate(X509CertificateHolder certHolder)
throws CertificateException {
try {
CertificateFactory certFact = helper.createCertificateFactory("X.509");
return (X509Certificate)
certFact.generateCertificate(new ByteArrayInputStream(certHolder.getEncoded()));
} catch (IOException e) {
throw new OpCertificateException(
"cannot get encoded form of certificate: " + e.getMessage(), e);
} catch (NoSuchAlgorithmException e) {
throw new OpCertificateException("cannot create certificate factory: " + e.getMessage(), e);
} catch (NoSuchProviderException e) {
throw new OpCertificateException("cannot find factory provider: " + e.getMessage(), e);
}
}
