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https://issues.apache.org/jira/browse/WICKET-3250?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12970151#action_12970151
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Szádeczky-Kardoss Szabolcs commented on WICKET-3250:
----------------------------------------------------
I don't have the capacity to check with the snapshot release, but the 3150
issue might well be related. I will definitely check with 1.5-M4 when it comes
out and tell you the outcome. If you think so, you can close the issue until
then or put it on hold. Thanks.
> "MarkupException: The component [...] was rendered already" when using
> wicket:message="title:..." markup attribute
> ------------------------------------------------------------------------------------------------------------------
>
> Key: WICKET-3250
> URL: https://issues.apache.org/jira/browse/WICKET-3250
> Project: Wicket
> Issue Type: Bug
> Components: wicket
> Affects Versions: 1.5-M3
> Reporter: Szádeczky-Kardoss Szabolcs
>
> I have a Panel for that there's a markup like this:
> <span wicket:message="title:favoriteCount.tip"/>
> without any actual associated Java code or child elements (for this part). I
> am reusing the Panel on several Pages. As long as I only visit one of these
> Pages, it works and shows fine, even if I go to another Pages (without this
> Panel) and then back or even if I refresh the Page.
> However if I visit the second page with this Panel (that's still fine) and
> then go back to the first one (I mean via explicitly clicking on a link to
> the first page and not via browser's back button), then a MarkupException
> occurs:
> "org.apache.wicket.markup.MarkupException: The component
> [TransparentWebMarkupContainer [Component id = _message_attr_11]] was
> rendered already. You can render it only once during a render phase. Class
> relative path:
> org.apache.wicket.markup.html.TransparentWebMarkupContainer:searchResultsPanel:_message_attr_11
> at org.apache.wicket.Page.componentRendered(Page.java:361)
> at org.apache.wicket.Component.rendered(Component.java:2762)
> at org.apache.wicket.Component.render_(Component.java:2566)
> at org.apache.wicket.Component.render(Component.java:2489)
> at
> org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1466)
> at org.apache.wicket.MarkupContainer.renderAll(MarkupContainer.java:1589)
> at
> org.apache.wicket.MarkupContainer.renderComponentTagBody(MarkupContainer.java:1564)
> at
> org.apache.wicket.MarkupContainer.renderAssociatedMarkup(MarkupContainer.java:746)
> at
> org.apache.wicket.markup.html.panel.Panel.onComponentTagBody(Panel.java:121)
> at org.apache.wicket.Component.renderComponent(Component.java:2700)
> at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1527)
> at org.apache.wicket.Component.render_(Component.java:2562)..."
> The error doesn't go away with browser refresh and keeps returning (for the
> first page) if I switch between the two pages. If I go back to the first
> scenario (click between a page with this panel on it and between another
> without it) then it is fine even after multiple visits, but the error returns
> again when I start the second scenario.
> I think this issue might be related to Wicket-3122, at least it's at the same
> place in my code.
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