- since I'm currently exploring the 2nd level cache keys and the
persistence context keys again, it's getting clear (again as we
discussed this before) to potentially use a different data structure
to hold the persistence context.
The persistence context holds a lot of data, a lot of Maps. Which in
particular are you think of? Based on your wording, I would assume you
speak of the `Map<EntityKey, Object> entitiesByKey` and maybe the
`EntityEntryContext`?