This class is part of the local stub API, the purpose of which is to provide
high performance calls for collocated clients and servers
(i.e. clients and servers residing in the same Java VM).
The local stub API is supported via three additional methods on
ObjectImpl and Delegate.
ORB vendors may subclass this class to return additional
request state that may be required by their implementations.
The real servant. The local stub may cast this field to the expected type, and then
invoke the operation directly. Note, the object may or may not be the actual servant
instance.