Object Manager has been closed error
I recently faced this strange situation when datanculeus started throwing a "Object Manager has been closed" exception.
This basically means I'm trying to detach the object in hand after the persistence manager was closed. But that wasn't the case at all !
However, regarding the way I solved this, here is my assumption.
- Your field is included in the default fetch group (defaultFetchGroup = "true")
- You enabled detachment on closing the persistence manager (datanucleus.DetachOnClose=true)