@Override
    public EchoResponse echoObj(EchoRequest req) {
        RpcInvokeContext context = RpcInvokeContext.getContext();
        LOGGER.info("-----b-----:" + context);
        reqBaggage = context.getRequestBaggage("reqBaggageB");
        if (reqBaggage != null) {
            context.putResponseBaggage("respBaggageB", "b2aaa");
        } else {
            context.putResponseBaggage("respBaggageB_force", "b2aaaff");
        }
        EchoResponse s1 = sampleServiceC.echoObj(req);
        EchoResponse s2 = sampleServiceD.echoObj(req);
        return EchoResponse.newBuilder().setCode(200).setMessage(s1.getMessage() + s2.getMessage()).build();
    }
@author <a href="mailto:zhanggeng.zg@antfin.com">GengZhang</a>
test/test-integration/src/test/java/com/alipay/sofa/rpc/test/baggage/BSampleServiceImpl.java