Hey, I have a question about using classes with fields that are not serializable in DataStream. Basically, I would like to use the Java's Optional in DataStream. So Say I have a class *Data *that has several optional fields and I would like to have *DataStream<Data>*. I don't think this should cause any issues, but I thought it can be good to ask whether this can cause any issues with Flink Jobs.
Thanks, Best, Dom.
