private function getLegacyProvider()
{
return [new Legacy\ApiFileProvider(), new Legacy\BackendControllerFileProvider(), new Legacy\BackendFileProvider(), new Legacy\CommandFileProvider(), new Legacy\ControllerPathFileProvider(), new Legacy\DefaultFileProvider(), new Legacy\FilterFileProvider(), new Legacy\FrontendFileProvider(), new Legacy\ModelFileProvider(), new Legacy\WidgetFileProvider(), new Legacy\ElasticSearchProvider()];
}