@Override
            public void onAppResponse(Object appResponse, String methodName, RequestBase request) {
                sendSofaException(new SofaRpcException(RpcErrorType.SERVER_BUSY, "bbb"));
            }
@author <a href="mailto:zhanggeng.zg@antfin.com">GengZhang</a>
test/test-integration/src/test/java/com/alipay/sofa/rpc/test/async/AsyncHelloServiceImpl.java