code: public List<Object> getOptional(Object locator) {
  		try {
  			return find(Object.class, locator, false);
  		} catch (Exception ex) {
  			return new ArrayList<Object>();
  		}
  	}
docs: Gets all component references that match specified locator.
  
  @param locator the locator to find references by.
  @return a list with matching component references or empty list if nothing
  was found.