ResultClass cannot inherit class with same field names?
I'm not sure if this is a bug or by design. I have raised an issue in the Datanucleus-rdbms project at https://github.com/datanucleus/datanucleus-rdbms/issues/384, but not sure which forum is better suited to discuss the finding(s).
From the exception, I would expect that fields with the same name, and the same case are permitted. However, this indicates otherwise.
Is this a bug or by design? If a bug, I have submitted a proposed PR to resolve the issue.