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https://issues.apache.org/jira/browse/TAPESTRY-1925?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Howard M. Lewis Ship closed TAPESTRY-1925.
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Resolution: Fixed
Fix Version/s: 5.0.7
> Obscure exception when a Collection (not a List) is used as a GridDataSource
> ----------------------------------------------------------------------------
>
> Key: TAPESTRY-1925
> URL: https://issues.apache.org/jira/browse/TAPESTRY-1925
> Project: Tapestry
> Issue Type: Bug
> Components: Core Components
> Affects Versions: 5.0.6
> Reporter: Kevin Menard
> Assignee: Howard M. Lewis Ship
> Priority: Minor
> Fix For: 5.0.7
>
> Attachments: TAPESTRY-1925.patch, TAPESTRY-1925_(2).patch
>
>
> Tapestry throws an exception when providing an empty collection, such as
> java.util.Collections.EMPTY_SET, to the Grid component as the source
> parameter. The message is of the form "tried to access class
> java.util.Collections$EmptySet from clas $PropertyConduit_XXX".
> It appears to be a case of not knowing which type of class to use, rather
> than just using the interface.
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