The JPA Processor fills the gap between Olingo V4 and the database, by providing a mapping between JPA metadata and OData metadata, generating queries and supporting the entity manipulations.
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fix(JPAEntityProcessor): An empty collection does not return 204 #3
According to the OData protocol, 204 should only be returned if the resource is null. Currently we return null on an empty list result.
cf: odata v4 errata:
9.1.4 Response Code 204 No Content
A request returns 204 No Content if the requested resource has the null value, or if the service
applies a return=minimal preference. In this case, the response body MUST be empty.
According to the OData protocol,
204should only be returned if the resource is null. Currently we return null on an empty list result. cf: odata v4 errata: