docs: public Map<String, String> getStructureValueMap() {
  
          if ((m_structureValueMap == null) && (m_structureValue != null)) {
              // use lazy initializing of the map
              m_structureValueMap = createMapFromValue(m_structureValue);
              m_structureValueMap = Collections.unmodifiableMap(m_structureValueMap);
          }
          return m_structureValueMap;
      }