 @param constructFullMapAtInit initialize the maps with full mapping when
   *        true, otherwise initialize the maps to empty. This parameter is
   *        intended for testing only, its default is false.
 @param constructFullMapAtInit initialize the maps with full mapping when
   *        true, otherwise initialize the maps to empty. This parameter is
   *        intended for testing only, its default is false. | ShellBasedIdMapping.java