code: void stopAll() {
  
  		try {
  			this.dmClient.closeConnection();
  			stop();
  
  		} catch( Throwable t ) {
  			this.logger.warning( "An error occurred while closing the connection of the DM client." );
  			Utils.logException( this.logger, new RuntimeException( t ));
  		}
  	}
docs: Stops all the clients (agents and DM).
  <p>
  Mostly for tests.
  </p>