| RemoteReference | The RemoteReference interface wraps a Reference in a Remote wrapper. |
| ReferenceWrapper | The ReferenceWrapper class is a Remote wrapper for Reference objects. |
| RegistryContext | A RegistryContext is a context representing a remote RMI registry. |
| RegistryContextFactory | A RegistryContextFactory takes an RMI registry reference, and creates the corresponding RMI object or registry context. |