CertPathBuilderException, IOException, KeytoolException,
NoSuchProviderException, KeyStoreException {
String alias = param.getAlias();
KeyStore keyStore = param.getKeyStore();
boolean contains = keyStore.containsAlias(alias);
String certProvider = (param.getCertProvider() != null) ? param
.getCertProvider() : param.getProvider();
// if the alias already exists, try to import the certificate as
// a cert reply