Details
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Bug
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Status: Closed
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Normal
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Resolution: Outdated
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None
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Description
The JackRabbit implementation of Node#refresh is not safe in concurrent (multi-threaded) scenarios.
The changes from other sessions are not merged atomically, but arrive as individual item-state updates. This causes temporary inconsistency in the state of the session. Node#refresh needs to verify the hierarchy of all items in the changelog and hence needs a consistent hierarchy.
Saving a session that failed it's refresh may cause inconsistencies. (setting the 'validate hierarchy' system property will block these, at the cost of some performance)
The workaround is to use Session#refresh. That call does not need to check the hierarchy and so is not affected.
