public Builder clear() {
            super.clear();
            code_ = 0;

            message_ = "";

            return this;
        }
Protobuf type {@code com.alipay.sofa.rpc.server.bolt.pb.EchoResponse}
test/test-integration/src/test/java/com/alipay/sofa/rpc/server/bolt/pb/EchoResponse.java