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https://issues.apache.org/jira/browse/ISIS-349?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13584452#comment-13584452
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Dan Haywood commented on ISIS-349:
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On further testing, discovered a race condition, meaning that in certain
circumstances the info and warning messages are not rendered.
This is most likely due to how the Wicket viewer exploits the
REDIRECT_AFTER_POST rendering strategy. From Isis' viewpoint, there are two
interactions. The reason this is a problem is because Isis associates the
MessageBroker with the interaction (persistence session/transaction) rather
than with the user.
To address this, am moving MessageBroker to be owned by the
AuthenticationSession. For now, it will still be lazily created by the
IsisTransactionManager, but will only be created once per user.
> Show notifications, warning messages and error messages in Wicket
> -----------------------------------------------------------------
>
> Key: ISIS-349
> URL: https://issues.apache.org/jira/browse/ISIS-349
> Project: Isis
> Issue Type: Improvement
> Components: Viewer: Wicket
> Affects Versions: viewer-wicket-1.1.0
> Reporter: Dan Haywood
> Assignee: Dan Haywood
> Priority: Blocker
> Fix For: viewer-wicket-1.2.0
>
>
> in other words, if using domainObjectContainer.informUser(...), or
> warnUser(...), or raiseError()
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