PaginatedFlexibleSearchService returns empty list

[superpalmi]

Hi everyone, I built this function to retrieve Products in a Wishlist given UserId and Wishlist code and pagination.

I used paginatedFlexibleSearchService like this but I couldn't get any result:

@Override
public List<ProductModel> findPaginatedProductsInWishlistByUserIdAndProductCode(final String userId, final String code, final SearchPageData<ProductModel> searchPageData)
{

  StringBuilder query = new StringBuilder();

  query.append("select {p.PK} "
      + "FROM{ "
      + "Wishlist2Product as w2p "
      + "JOIN Product as p ON {p.pk} = {w2p.target} "
      + "JOIN Wishlist as w ON {w.pk} = {w2p.source} "
      + "JOIN User as u ON {u.pk} = {w.user} "
      + "} "
      + "WHERE {w.code} = ?code "
      + "AND {u.uid} = ?userId ");

  FlexibleSearchQuery fQuery = new FlexibleSearchQuery(query);
  fQuery.addQueryParameter("userId", userId);
  fQuery.addQueryParameter("code", code);
  fQuery.setResultClassList(Arrays.asList(ProductModel.class));

  PaginatedFlexibleSearchParameter parameter = new PaginatedFlexibleSearchParameter();
  parameter.setFlexibleSearchQuery(fQuery);
  parameter.setSearchPageData(searchPageData);

  SearchPageData<ProductModel> search = paginatedFlexibleSearchService
      .search(parameter);

  return search.getResults();
}

I tried the normal FlexibleSearchService and I got all the results I needed, also using Hac FlexibleSearch.

What did I do wrong?

Also, I populated searchPageData in this way:

SearchPageData<ProductModel> searchPageData = PaginatedSearchUtils.createSearchPageDataWithPagination(pageSize,currentPage, true);

Thanks everyone for the attention.

[superpalmi]

Solved removing

 fQuery.setResultClassList(Arrays.asList(ProductModel.class));