private static PersistentSearchEverywhereContributorFilter<String> createContributorsFilter(List<? extends SearchEverywhereContributor<?>> contributors) {
    Map<String, @Nls String> namesMap = ContainerUtil.map2Map(contributors, c -> new Pair<>(c.getSearchProviderId(), c.getFullGroupName()));
    return new PersistentSearchEverywhereContributorFilter<>(
      ContainerUtil.map(contributors, c -> c.getSearchProviderId()),
      SearchEverywhereConfiguration.getInstance(),
      namesMap::get, c -> null);
  }
private static PersistentSearchEverywhereContributorFilter<String> createContributorsFilter(List<? extends SearchEverywhereContributor<?>> contributors)