Method add

test/MessageChecker.java:85–88

(Message m, DTNHost from, DTNHost to, String type, Boolean
			dropped, Boolean delivered)

	}
	
	private void add(Message m, DTNHost from, DTNHost to, String type, Boolean
			dropped, Boolean delivered) {
		this.queue.add(new MsgCheckerEvent(m,from,to,type,dropped,delivered));
	}

	/**
	 * @return the lastFirstDelivery