}
    }

    private <T> List<ServiceFactory<T>> findFactoriesForServiceType(Class<T> serviceType) {
        return factoriesFor(serviceType, implementationsOf(serviceType));
    }

    private <T> List<ServiceFactory<T>> factoriesFor(Class<T> serviceType, List<Class<? extends T>> implementationClasses) {
        List<ServiceFactory<T>> factories = new ArrayList<ServiceFactory<T>>();