How to shut down a Mina 2.0 server

[David Rosenstrauch]

Just switched over my code to 2.0, and having some issues with the 
changes - specifically, how do I shut down the server programmatically?

In the 1.0 code, I did this, and it seemed to be sufficient:
        acceptor.unbind();
        threadPool.shutdown();

Doesn't seem to work in the 2.0 code, though.  Obviously there's some 
threads hanging somewhere, and there's some component that needs to be 
disposed or shut down to kill them, but I have no idea which.

Thanks,

DR