@Override
            public void onAppException(Throwable t, String methodName, RequestBase request) {
                Assert.assertEquals("sampleService", t.getMessage());
                Assert.assertEquals("sayException", methodName);
            }
@author <a href="mailto:zhanggeng.zg@antfin.com">GengZhang</a>
test/test-integration/src/test/java/com/alipay/sofa/rpc/test/baggage/BaggageAsyncChainTest.java