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https://issues.apache.org/jira/browse/MYFACES-4612?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17739741#comment-17739741
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Melloware commented on MYFACES-4612:
------------------------------------
OK so in PrettyFaces the old code was doing this..
{code:java}
for (Iterator<FacesMessage> iter = facesContext.getMessages(null);
iter.hasNext(); ) {
messages.add(iter.next());
iter.remove();
} {code}
Expecting that would remove all global messages but since MyFaces stores things
in 2 different collection the other "Ordered" messages collection is never
touched. in Mojarra its one collection so this works.
> Quarkus: Duplicate messages
> ---------------------------
>
> Key: MYFACES-4612
> URL: https://issues.apache.org/jira/browse/MYFACES-4612
> Project: MyFaces Core
> Issue Type: New Feature
> Components: General
> Affects Versions: 4.0.1
> Reporter: Melloware
> Assignee: Melloware
> Priority: Major
>
> See: [https://github.com/primefaces/primefaces/issues/10279]
>
> MyFaces stores the same message in two different lists and Mojarra does not:
> {code:java}
> _messages = new LinkedHashMap<>(5, 1f);
> _orderedMessages = new ArrayList<>();
> List<FacesMessage> lst = _messages.computeIfAbsent(clientId, k -> new
> ArrayList<>(3));
> lst.add(message);
> _orderedMessages.add(message); {code}
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