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https://issues.apache.org/jira/browse/MYFACES-3293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13092800#comment-13092800
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Martin Kočí commented on MYFACES-3293:
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Hi, this is another problem, probably related to state saving, please create
new issue for that, there were changes in state saving (master bug MYFACES-3117)
> REGRESSION: 2.0.5->2.0.6: RendererUtils.renderChild no longer checks
> isRendered
> -------------------------------------------------------------------------------
>
> Key: MYFACES-3293
> URL: https://issues.apache.org/jira/browse/MYFACES-3293
> Project: MyFaces Core
> Issue Type: Bug
> Affects Versions: 2.0.6, 2.0.7
> Reporter: Kennard Consulting
> Attachments: addressbook-faces2-src.zip, addressbook-faces2.war,
> addressbook-faces2.war
>
>
> Hi guys,
> Thanks for all the work you do on MyFaces. It is such a robust JSF
> implementation.
> There appears to have been a regression between 2.0.5 and 2.0.6/2.0.7?
> Specifically, RendererUtils.renderChild no longer does an 'upfront' check of
> whether a UIComponent is rendered or not. This logic appears flawed if the
> UIComponent does *not* render its own children (the default in
> Renderer.getRendersChildren)?
> First, encodeBegin/encodeEnd for the UIComponent will skip (the default in
> UIComponentBase.encodeBegin). But encodeChildren for the UIComponent will not
> get called (because getRendersChildren is false), so the UIComponent has no
> opportunity to prevent rendering of its children. Instead RendererUtils will
> invoke encodeBegin/encodeEnd on each child directly. So if a rendered
> component is nested inside a non-rendered component, it will still appear.
> Surely there is an implication that even if I elect not to render my own
> children (i.e. I let JSF handle it), they should not get rendered if I myself
> am not rendered?
> I enclose a small project that demonstrates the issue. Hopefully it is
> sufficient to debug. If not I can try and untangle it from Metawidget.
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