t:StatusCode">StatusCode</a></p><div class="doc"><p>Disconnect from a registry:
   The caller disconnects from a registry
   to which it has registered before.
   For the case that the registry is not receiving heartbeats
   from the caller,
   it is essential to unregister, when
   the service is no longer provided.
   Otherwise, the registry has no way to know
   that it should not send requests to this provider anymore.
</p><ul><li> <code>Con</code>: Connection to a Stomp broker;
</li><li> <code><a href=