[Java][Jersey2] When unmarshaling payload, discriminator value should not be sanitized

Created by: sebastien-rosset

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Description

In a OAS document, a schema has a discriminator, and the discriminator value is mo.TagSummary. Notice the value starts with lowercase and has a period.

When the Java jersey2 client attempts to unmarshal a payload from the server, it expects to see MoTagSummary instead of mo.TagSummary. It looks like the mustache template is using a tag that has converted the name to Java instead of using the OAS discriminator value.

ApiException: Response body is invalid as it doens't match
any schemas (..., MoTagSummary, ...) defined in the oneOf/anyOf model

Also notice there is a typo, it should be doesn't, not doens't

Update: upon further investigation and discussion, the Jersey2 library does not use the discriminator at all.

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