Connector callbackConnector2 = new Connector(callbackLocatorURI2, config);
callbackConnector2.start();
DelayedCallbackHandler callbackHandler = new DelayedCallbackHandler();
client1.addListener(callbackHandler, new InvokerLocator(callbackLocatorURI1));
client2.addListener(callbackHandler, new InvokerLocator(callbackLocatorURI2));
assertEquals(2, invocationHandler.callbackHandlers.size());
log.info("clients added callback handler");
Iterator it = invocationHandler.callbackHandlers.iterator();
ServerInvokerCallbackHandler serverInvokerCallbackHandler1 = (ServerInvokerCallbackHandler) it.next();