    public static List<Tache> yamlToMap(String configurationFile) throws FileNotFoundException {
        Yaml yaml = new Yaml();
        List objects = (List) yaml.load(new FileInputStream(new File(configurationFile)));
        if(null == objects) return newArrayList();
        verifyInstances(objects);
        return (List<Tache>) objects;
    }

    public static List<Tache> yamlToMap(String configurationFile) throws FileNotFoundException {
        Yaml yaml = new Yaml(new CustomClassLoaderConstructor(Configuration.class.getClassLoader()));
        List objects = (List) yaml.load(new FileInputStream(new File(configurationFile)));
        if(null == objects) return newArrayList();
        verifyInstances(objects);
        return (List<Tache>) objects;
    }
