code: protected void closeLocalConnection(Connection connection) {
      try {
        if (connection != null && !connection.isClosed()) {
          connection.close();
        }
      } catch (SQLException e) {
        if (logger.isTraceEnabled()) {
          logger.trace(e.getMessage());
        }
      }
    }
docs: DOCUMENT ME!
  
  @param connection DOCUMENT ME!