@Override
    public TestObj echoObj(TestObj obj) {
        LOGGER.info("receive obj: {}", obj);
        return obj;
    }
@author <a href="mailto:zhanggeng.zg@antfin.com">GengZhang</a>
example/src/test/java/com/alipay/sofa/rpc/invoke/generic/TestGenericServiceImpl.java