assertTrue(client.getInvoker() instanceof BisocketClientInvoker);
String callbackLocatorURI = getTransport() + "://" + host + ":1";
config.put(Bisocket.IS_CALLBACK_SERVER, "true");
Connector callbackConnector = new Connector(callbackLocatorURI, config);
callbackConnector.start();
SimpleCallbackHandler callbackHandler = new SimpleCallbackHandler();
client.addListener(callbackHandler, new InvokerLocator(callbackLocatorURI));
log.info("client added callback handler");
client.invoke(CALLBACK_TEST);
assertEquals(1, callbackHandler.callbackCounter);