code: public void init(AuthenticationProvider authProvider, RemoteAuthenticatedUser user) {
  
          // Associate the originating authentication provider
          this.authProvider = authProvider;
  
          // Provide access to all connections shared with the given user
          this.connectionDirectory.init(user);
  
          // The connection group directory contains only the root group
          this.rootGroup = new SharedRootConnectionGroup(this);
  
          // Create internal pseudo-account representing the authenticated user
          this.self = new SharedUser(user, this);
  
      }
docs: Creates a new SharedUserContext which provides access ONLY to the given
  user, the SharedConnections associated with the share keys used by that
  user, and an internal root connection group containing only those
  SharedConnections.
  
  @param authProvider
  The AuthenticationProvider that created this
  SharedUserContext;
  
  @param user
  The RemoteAuthenticatedUser for whom this SharedUserContext is being
  created.