Generated enum classes of type Integers faling to deserialize JSON using Jackson 2.10.x and higher version.

We detected an issue during the json deserialization using the Jackson library 2.11.2 version.

The enum classes generated with the swagger open API 3.0 generator plugin are causing Jackson to throw exception when trying to deserialize the json using Jackson library 2.10.x and above versions.

The issue is happening when a swagger yaml has a type declared with the enum type of Integer in the spec, and the generated code trying to deserialize the json.

I have created a PR #904 with a possible fix and tested it with different Java types on my machine. Kindly take a look and approve if you think it looks good.

sample yaml with an enum Integer:

Count:
type: Integer
enum:

• 1
• 2

Start by reviewing PR #904 and the generated enum classes produced from the sample Swagger YAML. Reproduce JSON deserialization with Jackson 2.10 or later using the integer enum values 1 and 2, then verify that the generated code deserializes those values correctly across the Java types tested in the proposed fix.