code: @Override
  	public String getMaxChangeDate() {
  		Collector col = featureCollectorRepository.findByName(FeatureCollectorConstants.VERSIONONE);
  		if (col == null)
  			return "";
  		if (StringUtils.isEmpty(getFeatureSettings().getDeltaCollectorItemStartDate()))
  			return "";
  
  		List<Team> response = teamRepo.findTopByChangeDateDesc(col.getId(),
  				getFeatureSettings().getDeltaCollectorItemStartDate());
  		if (!CollectionUtils.isEmpty(response))
  			return response.get(0).getChangeDate();
  		return "";
  	}
docs: Retrieves the maximum change date for a given query.
  
  @return A list object of the maximum change date