code: public void quit() throws SshException {
  		try {
  			sftp.close();
  		} catch (SshIOException ex) {
  			throw ex.getRealException();
  		} catch (IOException ex1) {
  			throw new SshException(ex1.getMessage(),
  					SshException.CHANNEL_FAILURE);
  		}
  
  	}
docs: <p>
  Close the SFTP client.
  </p>