docs: private void doGenerate() {
  		if (checkExistingCertificate()) {
  			// prevent overwriting
  			return;
  		}
  		try {
  			final KeyStore newrootca = SslCertificateUtils.createRootCA();
  			setRootca(newrootca);
  		} catch (final Exception e) {
  			logger.error("Error while generating Root CA certificate", e);
  		}
  	}