code: private Map<String, String> mergeItem(
          String item,
          Map<String, String> localeValues,
          Map<String, String> resultLocaleValues) {
  
          if (resultLocaleValues.get(item) != null) {
              if (localeValues.get(item) != null) {
                  localeValues.put(item, localeValues.get(item) + " " + resultLocaleValues.get(item));
              } else {
                  localeValues.put(item, resultLocaleValues.get(item));
              }
          }
  
          return localeValues;
      }
docs: Merges the item from the resultLocaleValues into the corresponding item of the localeValues.
  @param item the item to merge
  @param localeValues the values where the item gets merged into
  @param resultLocaleValues the values where the item to merge is read from
  @return the modified localeValues with the merged item