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https://issues.apache.org/jira/browse/WICKET-6235?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sven Meier resolved WICKET-6235.
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Resolution: Fixed
Fix Version/s: 7.5.0
6.25.0
8.0.0-M2
Items in the table body are visited only now.
> TableTree#updateNode() fails if no corresponding node is visible
> ----------------------------------------------------------------
>
> Key: WICKET-6235
> URL: https://issues.apache.org/jira/browse/WICKET-6235
> Project: Wicket
> Issue Type: Bug
> Components: wicket-extensions
> Affects Versions: 8.0.0-M1, 7.4.0, 6.24.0
> Reporter: Sven Meier
> Assignee: Sven Meier
> Fix For: 8.0.0-M2, 6.25.0, 7.5.0
>
>
> TableTree#updateNode() tries to locate the corresponding node by visiting all
> Item children. If this node is not visible currently (e.g. because a parental
> node is collapsed), the children visitor runs into the table header (which
> comes after the table body) - causing a ClassCastException when the Item is
> expected to have a NodeModel, which it doesn't inside the header (or footer).
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