docs: @Override
      public void sendProgress(Integer msg)
      {
          DbConn cnx = Helpers.getNewDbSession();
          try
          {
              this.ji.setProgress(msg); // Not persisted, but useful to the Loader.
              cnx.runUpdate("jj_update_progress_by_id", msg, ji.getId());
              cnx.commit();
          }
          finally
          {
              Helpers.closeQuietly(cnx);
          }
      }