class ModelValidation {

    public ComboBoxModel getAllJobs() {
        ComboBoxModel model = new ComboBoxModel(jenkins.getAllJobNames());
        model.add(0, NO_REFERENCE_JOB); // make sure that no input is valid
        return model;
    }

    public  ModelValidation();
    @VisibleForTesting  ModelValidation(final JenkinsFacade jenkins);

}