TMF641_Service_Ordering_Management_API_v4.1.0_swagger.json when used to generate Spring REST servers with OpenAPI generator encounters few troubles.
For example, a default POST done with the example values leads to:
```log
Resolved [org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot construct instance of `org.openapitools.model.ServiceRefOrValue` (although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value ('string'); nested exception is com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot construct instance of `org.openapitools.model.ServiceRefOrValue` (although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value ('string')<EOL> at [Source: (org.springframework.util.StreamUtils$NonClosingInputStream); line: 238, column: 24] (through reference chain: org.openapitools.model.ServiceOrderCreate["serviceOrderItem"]->java.util.ArrayList[0]->org.openapitools.model.ServiceOrderItem["service"]->org.openapitools.model.ServiceRefOrValue["serviceRelationship"]->java.util.ArrayList[0]->org.openapitools.model.ServiceRelationship["service"])]
```
OpenAPI generator has chances to be involved in this trouble. I'm a contributor of it, willing to study this problem and maybe prepare a patch for it.
For this, it would be useful to me to be allowed to push in their issues ressources the problematic json schema that causes the trouble.
Am I allowed to do so?
Thanks!
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Marc LE BIHAN
Airbus
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