Apache Syncope - Get all groups for user.java

import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.collections4.Transformer;
import org.apache.commons.collections4.list.SetUniqueList;

// Given this user...
UserTO userTO = ...

List<String> groupKeys = SetUniqueList.setUniqueList(new ArrayList<String>());

// First statically assigned groups...
CollectionUtils.collect(userTO.getMemberships(), new Transformer<MembershipTO, String>() {

    @Override
    public String transform(final MembershipTO input) {
        return input.getGroupKey();
    }
  }, groupKeys);

// ...then dinamically assigned groups
groupKeys.addAll(userTO.getDynGroups());

if (!groupKeys.isEmpty()) {
  String fiql;
  if (groupKeys.size() == 1) {
    fiql = SyncopeClient.getGroupSearchConditionBuilder().
            is("key").
            equalTo(groupKeys.get(0)).
            query();
  } else {
    fiql = SyncopeClient.getGroupSearchConditionBuilder().
            is("key").
            equalTo(groupKeys.get(0),
                    groupKeys.subList(1, groupKeys.size() - 1).toArray(new String[groupKeys.size() - 1])).
            query();
  }

  // without page / size parameters in the AnyQuery instance above, this will only
  // return the first 25 groups at most
  PagedResult<GroupTO> result = syncopeClient.getService(GroupService.class).search(
                    new AnyQuery.Builder().
                    realm(SyncopeConstants.ROOT_REALM).
                    fiql(fiql).
                    build());
  List<GroupTO> groups = result.getResult();
}

@gonzalad fixed, thanks for reporting