Retrieves the context at which to continue the method using
request controls and environment properties.
Regardless of whether a referral is encountered directly during a
context operation, or indirectly, for example, during a search
enumeration, the referral exception should provide a context
at which to continue the operation.
To continue the operation, the client program should re-invoke
the method using the same arguments as the original invocation.
reqCtls is used when creating the connection to the referred
server. These controls will be used as the connection request controls for
the context and context instances
derived from the context.
reqCtls will also be the context's request controls for
subsequent context operations. See the LdapContext class
description for details.
This method should be used instead of the other two overloaded forms
when the caller needs to supply request controls for creating
the referral context. It might need to do this, for example, when
it needs to supply special controls relating to authentication.
Service provider implementors should read the "Service Provider" section
in the LdapContext class description for implementation details.
