response = cbk2.getMessage();
Assert.assertEquals("message body is empty", true, response.getDataLength() > 0);
service1.unsubscribe(4);
Assert.assertNull("the session ID is not null)", service1.getSessionId());
service2.unsubscribe(4);
Assert.assertNull("the session ID is not null)", service2.getSessionId());
}
/**
* Description: two message receives - waitTime on server is longer than subscriptionTimeout, it verifies timer are scheduled