clientOptions.setTransportInProtocol(Constants.TRANSPORT_HTTP);
clientOptions.setUseSeparateListener(true);
serviceClient.setOptions(clientOptions);
Callback callback1 = new TestCallback ("Callback 1");
serviceClient.sendReceiveNonBlocking (getEchoOMBlock("echo1","sequence1"),callback1);
Callback callback2 = new TestCallback ("Callback 2");
serviceClient.sendReceiveNonBlocking(getEchoOMBlock("echo2","sequence1"),callback2);
clientOptions.setProperty(SandeshaClientConstants.LAST_MESSAGE, "true");
Callback callback3 = new TestCallback ("Callback 3");