public String sayHello(String hello) {
        for (int i = 0; i < 10000; i++) {
            StringBuffer sb = new StringBuffer();
            sb.append(new Random().nextInt(5000));
        }
        return hello;
    }
TODO Comment of HelloServiceImpl

@author tony.chenl
src/test/java/com/alibaba/json/test/dubbo/HelloServiceImpl.java