DetachManager.detach() has thrown an UserException

We found this prefix in 2 webpages.
MapChildren (2)Typical messages (2)TraceDetailed Map
  1. kodo.util.UserException
    1.   at kodo.runtime.PersistenceManagerImpl.assertManaged()
    2.   at kodo.runtime.DetachManager.assertManaged()
    3.   at kodo.runtime.DetachManager.detach()
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  1. Query Exception

    First:13 years ago
    Last:2 years ago
    Author:3004
  2. Problem with detach?

    First:13 years ago
    Last:2 years ago
    Author:3004
MessageNumber of crashes
The given instance of type "trekwatch.core.config.Country" and id "null" is not managed by this PersistenceManager.[trekwatch.core.config.Country@c7345c]1
The given instance of type "OurClass" and id "A" is not managed by this PersistenceManager.[OurClass$Identity-A]1
  1. kodo.util.UserException
    1.   at kodo.runtime.PersistenceManagerImpl.assertManaged()
    2.   at kodo.runtime.DetachManager.assertManaged()
    3.   at kodo.runtime.DetachManager.detach()
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