public boolean contains(Space p) throws Exception {
public boolean contains(Structure p) throws Exception {
    public boolean contains(Space p) throws Exception {        boolean b = false;        Space s = null; //?? getChild(Item.SPACE);        if (s != null) {            b = s.contains(p);        } else {            throw new Exception("Could not check position. The space is null.");        }        return b;    }