@Override public Resource apply(Resource from) { checkNotNull(from, "Cannot execute transformation " + this + ", on null parameter."); final EMFModel result = transform(inject(from, get(OWLPackage.eNS_URI)), owl2ecore()); if (result != null && needRefiningTransformation(options)) { final EMFModel model = transform(result, new EcoreRefine()); return model == null ? null : model.getResource(); } else { return result == null ? null : result.getResource(); } }