private void maybeForceBuilderInitialization() {
        if (com.google.protobuf.GeneratedMessage.alwaysUseFieldBuilders) {
          getUnitsFieldBuilder();
          getBulletsFieldBuilder();
          getPlayersFieldBuilder();
          getCreatedUnitsFieldBuilder();
          getDestroyedUnitsFieldBuilder();
          getMorphedUnitsFieldBuilder();
          getShownUnitsFieldBuilder();
          getHiddenUnitsFieldBuilder();
          getRenegadedUnitsFieldBuilder();
          getReceivedTextsFieldBuilder();
          getSelectedUnitsFieldBuilder();
          getNukeDetectFieldBuilder();
          getScreenPositionFieldBuilder();
          getDynamicTerrainInfoFieldBuilder();
          getTerrainInfoFieldBuilder();
        }
      }