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https://issues.apache.org/jira/browse/JCR-3239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13494051#comment-13494051
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Jörg von Frantzius commented on JCR-3239:
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Also still exists in 2.4.1
> Removal of a top level node doesn't update the hierarchy manager's cache.
> -------------------------------------------------------------------------
>
> Key: JCR-3239
> URL: https://issues.apache.org/jira/browse/JCR-3239
> Project: Jackrabbit Content Repository
> Issue Type: Bug
> Components: jackrabbit-core
> Affects Versions: 2.2.11, 2.4
> Reporter: Philipp Bärfuss
> Priority: Minor
>
> *Problem*
> Scenario in which I encounter the problem:
> - given a node 'test' under root (/test)
> - re-imported the node after a deletion (all in-session operations)
> {code}
> session.removeItem("/test")
> session.getImportXML("/", stream,
> ImportUUIDBehavior.IMPORT_UUID_COLLISION_THROW)
> {code}
> Result: throws an ItemExistsException
> If the same operations are executed deeper in the hierarchy (for instance
> /foo/bar) then the code works perfectly fine.
> *Findings*
> - session.removeItem informs the hierachy manager (via listener)
> --> CachingHierarchyManager.nodeRemoved(NodeState, Name, int, NodeId)
> - but the root node (passed as state) is not in the cache and hence the entry
> of the top level node is not removed
> --> CachingHierarchyManager: 458
> - while trying to import the method SessionImporter.startNode(NodeInfo,
> List<PropInfo>) calls session.getHierarchyManager().getName(id) (line 400)
> - the stall information causes a uuid collision (the code expects an
> exception if the node doesn't exist but in this case it returns the name of
> the formerly removed node)
> Note: session.itemExists() and session.getNode() work as expected (the former
> returns false, the later throws an ItemNotFound exception)
> Note: I know that a different import behavior (replace existing) would solve
> the issue but I can't be 100% sure that the UUID match so I favor collision
> throw in my case.
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