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## javax.management
Interface NotificationListener

All Superinterfaces:
  EventListener

All Known Implementing Classes:
  RelationService

    public interface NotificationListener

extends EventListener

Should be implemented by an object that wants to receive notifications.

Since:
  1.5

Method Summary
`void` | `handleNotification(Notification notification, Object handback)` Invoked when a JMX notification occurs.

Method Detail

### handleNotification

    void handleNotification(Notification notification,
                            Object handback)

  Invoked when a JMX notification occurs. The implementation of this method should return as soon as possible, to avoid blocking its notification broadcaster.

  Parameters:
    `notification` - The notification.
    `handback` - An opaque object which helps the listener to associate information regarding the MBean emitter. This object is passed to the MBean during the addListener call and resent, without modification, to the listener. The MBean object should not use or modify the object.

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