code: @Override
  	public void close() throws IOException {
  		try {
  			resultSet.close();
  		} catch (SQLException se) {
  			LOG.info("Inputformat couldn't be closed - " + se.getMessage());
  		} catch (NullPointerException npe) {
  		}
  		try {
  			statement.close();
  		} catch (SQLException se) {
  			LOG.info("Inputformat couldn't be closed - " + se.getMessage());
  		} catch (NullPointerException npe) {
  		}
  		try {
  			dbConn.close();
  		} catch (SQLException se) {
  			LOG.info("Inputformat couldn't be closed - " + se.getMessage());
  		} catch (NullPointerException npe) {
  		}
  	}
docs: Closes all resources used.
  
  @throws IOException Indicates that a resource could not be closed.