Attribute resolution for private credentials in subject

[Cantor, Scott]

> Oops, I just took a look at the source code and found the getName() method
> returns the password.
> I guess that is the way.

All Java Principals implement getName(), so that's the standard way to access data from a Principal that's based on a string. IIRC I also provided a more dedicated method name, but I could be misremembering that.

-- Scott