lastUpdateTimestamp = other.lastUpdateTimestamp;
	public void copyFrom(Frame<ValueType> other) {		int size = slotList.size();		if (size == other.slotList.size()) {			for (int i = 0; i < size; i++)				slotList.set(i, other.slotList.get(i));		} else {			slotList.clear();			for (ValueType v : other.slotList)				slotList.add(v);		}		isTop = other.isTop;		isBottom = other.isBottom;	}