See: Description
| Annotation Type | Description | 
|---|---|
| SendToUser | Indicates the return value of a message-handling method should be sent as a
  Messageto the specified destination(s)
 further prepended with"/user/{username}"where the user name
 is extracted from the headers of the input message being handled. | 
| SubscribeMapping | Annotation for mapping subscription messages onto specific handler methods based
 on the destination of a subscription. |