docs: public void convertTransactionIDs(DoubleIntIndex lookup) {
  
          writeLock.lock();
  
          try {
              RowAction[] list = new RowAction[rowActionMap.size()];
              Iterator    it   = this.rowActionMap.values().iterator();
  
              for (int i = 0; it.hasNext(); i++) {
                  list[i] = (RowAction) it.next();
              }
  
              rowActionMap.clear();
  
              for (int i = 0; i < list.length; i++) {
                  int pos = lookup.lookupFirstEqual(list[i].getPos());
  
                  list[i].setPos(pos);
                  rowActionMap.put(pos, list[i]);
              }
          } finally {
              writeLock.unlock();
          }
      }