**For internal use only** Provides the Spy active object that is created in each VM IC2D is asked to monitor.

The Spy is made of one active object (Spy) that is used for the remote communication with IC2D, and of one multithreaded listener object that registers itself to all components of active objects that need to be monitored.

@author ProActive Team @version 1.0, 2001/10/23 @since ProActive 0.7