Messages component cannot be updated by ajax without wrapping it
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Key: MYFACES-2895
URL: https://issues.apache.org/jira/browse/MYFACES-2895
Project: MyFaces Core
Issue Type: Bug
Reporter: Nick Belaevski
When there are no faces messages generated, h:messages component does not
render no HTML tags, so it cannot be updated by ajax.
To reproduce:
<h:messages id="messages" />
<h:commandButton value="Invoke listener by
type" action="#{bean.generateMessage}">
<f:ajax render="messages" />
</h:commandButton>
No messages will appear. As a workaround messages component can be wrapped into
h:panelGroup that's id will be specified in 'render':
<h:panelGroup id="messages">
<h:messages />
</h:panelGroup>
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