code: private void warnRooCaCertExpired() {
  		X509Certificate cert = getRootCaCertificate();
  		if (cert == null) {
  			return;
  		}
  		String warnMsg = Constant.messages.getString("dynssl.warn.cert.expired", cert.getNotAfter().toString(),
  				new Date().toString());
  		if (View.isInitialised()) {
  			getView().showWarningDialog(warnMsg);
  		}
  		logger.warn(warnMsg);
  	}
docs: Displays a warning dialog, and logs a warning message if ZAPs Root CA certificate has expired.
  
  @see #isCertExpired(X509Certificate)