List<Invoker<?>> invokers = registryDirectory.list(invocation);
Assert.assertEquals(2,invokers.size());
durls = new ArrayList<URL>();
durls.add(SERVICEURL.setHost("10.20.30.140"));
registryDirectory.notify(durls);
List<Invoker<?>> invokers2 = registryDirectory.list(invocation);
Assert.assertEquals(1,invokers2.size());
Assert.assertEquals("10.20.30.140", invokers.get(0).getUrl().getHost());
durls = new ArrayList<URL>();