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https://issues.apache.org/jira/browse/TAPESTRY-2690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12632695#action_12632695
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Martijn Brinkers commented on TAPESTRY-2690:
--------------------------------------------
Are you 100% sure you use the latest 5.0.15 build? Because I had a similar
problem https://issues.apache.org/jira/browse/TAPESTRY-2668 which was solved
with the latest 5.0.15 build. The bug was triggered by the volatile=true
setting.
> Cannot submit when Form is around Grid
> --------------------------------------
>
> Key: TAPESTRY-2690
> URL: https://issues.apache.org/jira/browse/TAPESTRY-2690
> Project: Tapestry
> Issue Type: Bug
> Components: tapestry-core
> Affects Versions: 5.0.15
> Reporter: Geoff Callender
>
> When Form is around a Grid a submit results in:
> Failure reading parameter 'source' of component
> theapp/security/UserSearch:grid.columns.loop:
> org.apache.tapestry5.ioc.internal.util.TapestryException
> ...snipped...
> Caused by: java.lang.NullPointerException
> at
> org.apache.tapestry5.corelib.components.GridColumns.getColumnNames(GridColumns.java:226)
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