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https://issues.apache.org/jira/browse/WICKET-4572?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martin Grigorov updated WICKET-4572:
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Attachment: WICKET-4572.patch
Here is a patch that uses an inversed index to remove the obsolete/expired keys
when adding a new page id.
> DiskDataStore returns the wrong page when the page disk space is full
> ----------------------------------------------------------------------
>
> Key: WICKET-4572
> URL: https://issues.apache.org/jira/browse/WICKET-4572
> Project: Wicket
> Issue Type: Bug
> Components: wicket
> Affects Versions: 1.5.6
> Reporter: Martin Grigorov
> Assignee: Martin Grigorov
> Priority: Critical
> Attachments: WICKET-4572.patch, pagecache.zip
>
>
> If the configured file size for the session data is overflowed (see
> org.apache.wicket.settings.IStoreSettings#setMaxSizePerSession(Bytes)) then
> Wicket may return wrong page data (bytes) for a expired page.
> The problem is in
> org.apache.wicket.pageStore.PageWindowManager#idToWindowIndex which may have
> several page ids (the keys) pointing to the same window index (values).
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