addModel(model);
addModel(model, _failures);
  public EOModel addModelFromFolder(File _folder, Set _failures) throws IOException, EOModelException {    String name = _folder.getName();    String modelName = name.substring(0, name.indexOf('.'));    EOModel model = getModelNamed(modelName);    if (model == null) {      model = new EOModel(modelName);      model.loadFromFolder(_folder, _failures);      addModel(model);    }    return model;  }