@Override
    public String sayHello(String name, int age) {
        return "fallback " + name + " from server! age: " + age;
    }
@author <a href=mailto:scienjus@gmail.com>ScienJus</a>
test/test-integration/src/test/java/com/alipay/sofa/rpc/hystrix/HystrixServiceFallback.java