public List<Cover> call() throws Exception {
List<Cover> albums = prov.getCovers(artist, album);
List<Cover> result = new ArrayList<Cover>(albums.size());
if (albums.size() > 0) {
for (Cover cover2 : albums) {
Cover a = cover2;
result.add(new CoverWrapper(a, prov));
}
} else {
logger.info("No album found");
}