I'm looking to create a test file and successor function for BFS in
the AIMA code. However, in order to instantiate a BFS I have to pass
in a QueueSearch. I ran into the problem when trying to instantiate
the QueueSearch. I know that QueueSearch extends the NodeExpander but
I've tried several ways to instantiate it and I keep getting
complaints from eclipse. Does anyone know how to create a QueueSearch
so that eclipse doesn't complain?

Thank you for your time.