ClientResponse<String> res = consumeNext.request().post(String.class);
Assert.assertEquals(503, res.getStatus());
consumeNext = MessageTestBase.getLinkByTitle(manager.getTopicManager().getLinkStrategy(), res, "acknowledge-next");
System.out.println(consumeNext);
Assert.assertEquals(201, sender.request().body("text/plain", Integer.toString(1)).post().getStatus());
res = consumeNext.request().post(String.class);
Assert.assertEquals(200, res.getStatus());
Assert.assertEquals(Integer.toString(1), res.getEntity());
Link ack = MessageTestBase.getLinkByTitle(manager.getTopicManager().getLinkStrategy(), res, "acknowledgement");
System.out.println("ack: " + ack);
ClientResponse ackRes = ack.request().formParameter("acknowledge", "true").post();