code: public void onDeleteResponseEvent(ResponseEvent event,
  			ActivityContextInterface aci) {
  		if (event.getException() != null) {
  			if (tracer.isInfoEnabled()) {
  				tracer.info("Failed to delete " + event.getURI(),
  						event.getException());
  			}
  
  			getParent().deleteResponse(event.getURI(), 500, null, null);
  		} else {
  			final XcapResponse response = event.getResponse();
  			if (tracer.isInfoEnabled()) {
  				if (response.getCode() == 200) {
  					tracer.info("Deleted " + event.getURI() + ". ETag:"
  							+ response.getETag());
  				} else {
  					tracer.info("Failed to delete " + event.getURI()
  							+ ". Response: " + response);
  				}
  			}
  			getParent().deleteResponse(event.getURI(), response.getCode(),
  					response.getEntity().getContentAsString(),
  					response.getETag());
  		}
  	}
docs: Handles XCAP DELETE response events.
  
  @param event
  @param aci