docs: @Override
    protected final void increaseNewListSize() throws IOException {
      // register old situation
      int tmpOldSize = newKeyList.length;
      int tmpNewPosition = newPosition;
      // increase
      super.increaseNewListSize();
      // reconstruct
      T1[][] tmpNewFullValueList = newFullValueList;
      newFullValueList = operations.createMatrix1(newSize);
      newPosition = tmpNewPosition;
      System.arraycopy(tmpNewFullValueList, 0, newFullValueList, 0, tmpOldSize);
    }