code: private Map<Locale, LinkedHashMap<String, String>> removeNullEntries(
          Map<Locale, LinkedHashMap<String, String>> multilingualContentItems) {
  
          for (Locale locale : multilingualContentItems.keySet()) {
              if (null == multilingualContentItems.get(locale)) {
                  multilingualContentItems.put(locale, new LinkedHashMap<String, String>());
              }
          }
          return multilingualContentItems;
      }
docs: Replaces all <code>null</code> values with empty maps.
  @param multilingualContentItems the map where replacement should take place
  @return the map with all <code>null</code> values replaced with empty maps.