@Override
	public void on(String event, IOAcknowledge ack, Object... args) {
		events.add("on");
		if (event.equals(REQUEST_ACKNOWLEDGE)) {
			ack.ack(args);
		}
		this.args.addAll(Arrays.asList(args));
	}
Take arg.

@return the object
@throws InterruptedException
            the interrupted exception
tests/io/socket/AbstractTestSocketIO.java