code: public FacesConfigMapEntriesType<FacesConfigManagedPropertyType<T>> getOrCreateMapEntries()
     {
        Node node = childNode.getOrCreate("map-entries");
        FacesConfigMapEntriesType<FacesConfigManagedPropertyType<T>> mapEntries = new FacesConfigMapEntriesTypeImpl<FacesConfigManagedPropertyType<T>>(this, "map-entries", childNode, node);
        return mapEntries;
     }
docs: If not already created, a new <code>map-entries</code> element with the given value will be created.
  Otherwise, the existing <code>map-entries</code> element will be returned.
  @return  a new or existing instance of <code>FacesConfigMapEntriesType<FacesConfigManagedPropertyType<T>></code>