NAM — Inadequate error codes for NamingContextExt

Consider the following situation:

• Two naming servers:
  One is new and implements NamingContextExt.
  The other is old and only implements the old NamingContext interface.

• the old one is federated into the new one

• a client invokes an operation in the extended interface,
  on the new one, using a compound name that references the old one.

It is not clear what exception should be returned in this case.

There seem a couple of semi-reasonable candidates:
CannotProceed & NO_IMPLEMENT.

withdrawn by submitter