Following my recent post about the excellent new metadata-bound libraries in V9.3 M2, I noticed Paul Homes publish a blog article with the results of his testing of this new capability. Paul shows some code samples and associated log output. Take a look! You can see the error messages that result from invalid attempts to access a table in a metadata-bound library.
My reference here to Paul's article is somewhat recursive given that Paul's article mentions my own original article! Thanks Paul.