Setting the representation identifier on a response that has no need for an entity

[Mark Petrovic]

Good day.

The First Resource app has code similar to this for setting the  
location of created resource:

String entity = "Items created";

Representation rep = new StringRepresentation(entity,  
MediaType.TEXT_PLAIN);
rep.setIdentifier(getRequest().getResourceRef().getIdentifier() + "/"  
+ so.getId().toString());
getResponse().setEntity(rep);
...

However, my app, that does something similar, has no need to set an  
actual entity value.  So I set entity="", but which results in this  
warning on the server side when the response is returned:

WARNING: A response with an unavailable entity was returned. Ignoring  
the entity for resource "http://localhost:8182/log/AVal

I'd rather not return an entity with nonzero length if no agent will  
use it - and no agent of mine does.

How should I handle this, all the while avoiding the warning in the  
server log?

Thanks.