Failure to deserialize polymorphic subtypes of base type `Enum`

[tbloecker]

Hi Jackson-Team,
I have posted this first at the Google Jackson-User Group:
https://groups.google.com/forum/#!topic/jackson-user/NjrFaUzTaRA

We have Problems with our application after updating Jackson to 2.10.*
With 2.10 we get "Cannot deserialize Class java.lang.Enum (of type enum) as a Bean" erros but with 2.9.10 everything is fine.
The Problem is about a genereic class where we have to ensure that the generic-parameter is an enum. We don't have full controll about the created subtypes, so we can not use TypeReferences for de-/serialisation as mentioned at the User-Group Post.

I have created a simple Test that reproduce the Problem:
jsontest.zip
Changing the Jackson-Version in the POM to 2.9.10 makes the tests green.

Kind regards
Tim

[cowtowncoder]

Thank you reporting this issue. I hope I (or someone else) has time to look into this in near future.

[elboukhari]

Hi,
any update for this issue please ?

Regards,