# Uses of Class
java.rmi.activation.UnknownObjectException

Packages that use UnknownObjectException
Package | Description
--- | ---
java.rmi.activation | Provides support for RMI Object Activation.

## Uses of UnknownObjectException in java.rmi.activation

Methods in java.rmi.activation that throw UnknownObjectException
Modifier and Type | Method | Description
--- | --- | ---
`Remote` | ActivationID.`activate​(boolean force)` | Activate the object for this id.
`MarshalledObject<? extends Remote>` | Activator.`activate​(ActivationID id, boolean force)` | Activate the object associated with the activation identifier, `id`.
`protected void` | ActivationGroup.`activeObject​(ActivationID id, MarshalledObject<? extends Remote> mobj)` | This protected method is necessary for subclasses to make the `activeObject` callback to the group's monitor.
`abstract void` | ActivationGroup.`activeObject​(ActivationID id, Remote obj)` | The group's `activeObject` method is called when an object is exported (either by `Activatable` object construction or an explicit call to `Activatable.exportObject`.
`void` | ActivationMonitor.`activeObject​(ActivationID id, MarshalledObject<? extends Remote> obj)` | Informs that an object is now active.
`ActivationDesc` | ActivationSystem.`getActivationDesc​(ActivationID id)` | Returns the activation descriptor, for the object with the activation identifier, `id`.
`static boolean` | Activatable.`inactive​(ActivationID id)` | Informs the system that the object with the corresponding activation `id` is currently inactive.
`boolean` | ActivationGroup.`inactiveObject​(ActivationID id)` | The group's `inactiveObject` method is called indirectly via a call to the `Activatable.inactive` method.
`void` | ActivationMonitor.`inactiveObject​(ActivationID id)` | An activation group calls its monitor's `inactiveObject` method when an object in its group becomes inactive (deactivates).
`ActivationDesc` | ActivationSystem.`setActivationDesc​(ActivationID id, ActivationDesc desc)` | Set the activation descriptor, `desc` for the object with the activation identifier, `id`.
`static void` | Activatable.`unregister​(ActivationID id)` | Revokes previous registration for the activation descriptor associated with `id`.
`void` | ActivationSystem.`unregisterObject​(ActivationID id)` | Remove the activation id and associated descriptor previously registered with the `ActivationSystem`; the object can no longer be activated via the object's activation id.