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https://issues.apache.org/jira/browse/WICKET-5176?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Damien Hollis updated WICKET-5176:
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Attachment: Main.java
Attached is a very small test program that shows the issue.
> StringResourceModel doesn't detach model in some cases
> ------------------------------------------------------
>
> Key: WICKET-5176
> URL: https://issues.apache.org/jira/browse/WICKET-5176
> Project: Wicket
> Issue Type: Bug
> Reporter: Damien Hollis
> Priority: Minor
> Attachments: Main.java
>
>
> We have come across an issue with StringResourceModel not detaching the model
> it holds under a certain condition. The problem is the case where the
> StringResourceModel is created but it is not used - for example when it is on
> a tab that is not displayed.
> StringResourceModel is a subclass of LoadableDetachableModel and it simply
> implements onDetach(), letting the superclass decide whether it is attached
> or not. The problem is that when StringResourceModel is created,
> LoadableDetachableModel.attached will be false. If the StringResourceModel
> is never read (i.e. getObject() is not called) the LoadableDetachableModel
> will not be marked as attached and when detach() is called, onDetach() will
> not be called. Therefore StringResourceModel will not call detach() on the
> model that it holds.
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