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https://issues.apache.org/jira/browse/JCRVLT-85?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Konrad Windszus closed JCRVLT-85.
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> Import behaviour not always correct in case of conflicting node IDs
> -------------------------------------------------------------------
>
> Key: JCRVLT-85
> URL: https://issues.apache.org/jira/browse/JCRVLT-85
> Project: Jackrabbit FileVault
> Issue Type: Bug
> Components: Packaging
> Affects Versions: 3.1.16
> Reporter: Konrad Windszus
> Assignee: Konrad Windszus
> Priority: Major
> Fix For: 3.5.4
>
>
> There are two issue with conflicting IDs:
> # {{DocViewSAXImporter.addNode(DocViewNode)}} checks if an ID set in the node
> which is about to be imported to the JCR is already taken
> (https://github.com/apache/jackrabbit-filevault/blob/trunk/vault-core/src/main/java/org/apache/jackrabbit/vault/fs/impl/io/DocViewSAXImporter.java#L777).
> Unfortunately this check will completely skip the import if the conflicting
> node is a sibling of the to-be-imported node
> # Since between the check for the conflicting node id and the actual import
> in {{DocViewSAXImporter.createNode(DocViewNode)}} there might be other JCR
> operations happening leading to a conflicting node the import behaviour set
> in
> https://github.com/apache/jackrabbit-filevault/blob/trunk/vault-core/src/main/java/org/apache/jackrabbit/vault/fs/impl/io/DocViewSAXImporter.java#L979
> might still matter in edge cases.
> Currently it is using the
> {{ImportUUIDBehavior.IMPORT_UUID_COLLISION_REMOVE_EXISTING}}.
> According to the JCR Spec
> (http://www.day.com/specs/jcr/2.0/11_Import.html#11.8.2%20Remove%20Existing%20Node)
> that means the node with the same ID is first removed from the repo (no
> matter where it is located), then the new node one is imported with that ID.
> That is a problem, if by coincidence the ID 1 is used for node /content/a in
> the repository and now you install a package containing /content/b also
> having the ID 1. Then the package would remove the /content/a node from the
> repository, although this is not intended. I would rather recommend using
> {{ImportUUIDBehavior.IMPORT_UUID_COLLISION_THROW}}.
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