public int getSerializedSize() {
        int size = memoizedSize;
        if (size != -1)
            return size;

        size = 0;
        if (!getNameBytes().isEmpty()) {
            size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, name_);
        }
        if (group_ != com.alipay.sofa.rpc.protobuf.Group.A.getNumber()) {
            size += com.google.protobuf.CodedOutputStream
                .computeEnumSize(2, group_);
        }
        memoizedSize = size;
        return size;
    }
<code>.com.alipay.sofa.rpc.protobuf.Group group = 2;</code>
example/src/test/java/com/alipay/sofa/rpc/protobuf/EchoRequest.java