Github user tillrohrmann commented on the pull request:
https://github.com/apache/flink/pull/1104#issuecomment-138583453
Oh I have to correct myself. It's even worse then expected. Not only
`OptionTypeInfo` and `EitherTypeInfo` are broken but also `EnumTypeInfo` and
`TryTypeInfo` because they don't implement `equals`. Furthermore, the `equals`
method of `RecordTypeInfo`, `WritableTypeInfo` and `GenericTypeInfo` will fail
with a `NullPointerException` when called with `null`. The
`PrimitiveArrayTypeInfo` does not implement the `hashCode` method.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
