msgs = receiver3.getMessages();
assertNotNull(msgs);
assertTrue(msgs.isEmpty());
postOffice.removeBinding("queue1", false);
postOffice.removeBinding("queue2", false);
postOffice.removeBinding("queue3", false);
postOffice.removeBinding("queue4", false);
postOffice.removeBinding("queue5", false);
postOffice.removeBinding("queue6", false);