public void addSubFolders() { if (client.getUser() == null) { return; } try { Playlists playlists = client.getUser().getPlaylists(); playlists.load(false); for (Playlist playlist : playlists) { if (playlist.isVisible() && !YOUTUBE_DRIVE.contains(playlist.getSystemName())) { addChild(new AudioBoxPlaylist(client, playlist)); } } } catch (Exception ex) { log.error("Error fetching tracks: ", ex); } }