In a recent clean-up, certain exceptions were removed from various
throws clauses.
This PR re-introduces throws clauses that are important for one of the
following reasons:
1. It's a method on a public interface
2. It's a method clearly designed for inheritance, for example, a
method stub, an abstract method, or indicated as such in the docs.
Fixes gh-7541
Previously anonymous authentication was submitted as credentials over the wire which
caused the applications to attempt to authenticate the anonymous user.
Now if the user is anonymous (determined by the AuthenticationTrustResolver), the
AuthenticationSimpleHttpInvokerRequestExecutor does not populate any credentials.