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https://issues.apache.org/jira/browse/WICKET-4545?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13271486#comment-13271486
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Martin Grigorov commented on WICKET-4545:
-----------------------------------------
Currently org.apache.wicket.Component#internalRenderComponent() gets a mutable
ComponentTag from the MarkupStream's current tag and uses it for
#onComponentTag(), #onComponentTagBody(), etc.
The problem can be solved if instead a mutable copy of the MarkupStream is
created when a Page starts to render and this mutable MarkupStream is used for
the rendering of all components in the page. This way TWMC can mark itself as
auto component and Markup#find() will look into its children too.
> MarkupNotFoundException for Fragment and TransparentWebMarkupContainer
> ----------------------------------------------------------------------
>
> Key: WICKET-4545
> URL: https://issues.apache.org/jira/browse/WICKET-4545
> Project: Wicket
> Issue Type: Bug
> Components: wicket
> Affects Versions: 1.5.6
> Reporter: Dirk Forchel
> Attachments: quickstart.zip
>
>
> Create a base WebPage with a TransparentWebMarkupContainer to allow
> subclasses register CSS classes on the body tag. Add a Fragment to one of
> these subsclasses, the markup of the Fragment is not found.
> See also
> http://apache-wicket.1842946.n4.nabble.com/MarkupNotFoundException-for-Fragment-and-TransparentWebMarkupContainer-tp4619968.html
> Exception thrown:
> org.apache.wicket.markup.MarkupNotFoundException: No Markup found for
> Fragment testFragment in providing markup container [Page class =
> org.foo.HomePage, id = 0, render count = 1]
> at
> org.apache.wicket.markup.html.panel.FragmentMarkupSourcingStrategy.getMarkup(FragmentMarkupSourcingStrategy.java:143)
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