// now force a refresh by adding cluster
_clusterRegistry.put("cluster-1", new ClusterProperties("cluster-1"));
// Get client, then refresh service
client = _state.getClient("service-1", uri);
client.restRequest(new RestRequestBuilder(URI.create("d2://service-1/foo")).build(),
new RequestContext(),
Collections.<String, String>emptyMap(),
new TransportCallbackAdapter<RestResponse>(Callbacks.<RestResponse>empty()));
// refresh by adding service