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https://issues.apache.org/jira/browse/JS2-1261?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ate Douma resolved JS2-1261.
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Resolution: Fixed
> PortalSiteManager export feature is broken since upgrade to Wicket 1.4.17
> -------------------------------------------------------------------------
>
> Key: JS2-1261
> URL: https://issues.apache.org/jira/browse/JS2-1261
> Project: Jetspeed 2
> Issue Type: Bug
> Components: Admin Portlets
> Affects Versions: 2.2.1
> Reporter: Ate Douma
> Assignee: Ate Douma
> Fix For: 2.2.2
>
>
> Since the upgrade to Wicket 1.4.17 the PortalSiteManager export feature only
> produces empty (zero size) download zip files.
> This turns out to be caused by it now requiring explicit setting of the
> download file length, or leave it at -1.
> The current implementation, which still worked (and works!) with previous
> used Wicket 1.4.15, uses default and hard coded file length 0, which since
> the upgrade seems to be taken quite literal.
> Fixing by determining the actual file length at runtime and returning that
> (which potentially also improves performance, although in this case probably
> negligible).
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