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.
com.sap.olingo.jpa.metadata.core.edm.mapper.exception.ODataJPAModelException: Type 'java.time.ZonedDateTime' of attribute 'at' is not supported. Mapping not possible.
com.sap.olingo.jpa.metadata.core.edm.mapper.exception.ODataJPAModelException: Type 'java.time.ZonedDateTime' of attribute 'at' is not supported. Mapping not possible.
Take note of Olingo merge.