code: private boolean isMappingUsingDefault(String path, String mapping) {
  
          String key = path + ":" + mapping;
          return m_mappingsUsingDefault.contains(key);
      }
docs: Checks if the given mapping has the 'useDefault' flag set to true.<p>
  
  @param path the mapping path
  @param mapping the mapping type
  
  @return true if 'useDefault' is enabled for this mapping