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https://issues.apache.org/jira/browse/MYFACES-4536?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17753333#comment-17753333
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Melloware commented on MYFACES-4536:
------------------------------------
We were basically masking this bug in PrimeFaces by having our own
PartialResponseWriter that we now want to remove since we don't support older
JSF anymore only 2.3 and higher which exposed this issue.
> PartialResponseWriter: Do no wrap the writer
> --------------------------------------------
>
> Key: MYFACES-4536
> URL: https://issues.apache.org/jira/browse/MYFACES-4536
> Project: MyFaces Core
> Issue Type: Improvement
> Components: General
> Affects Versions: 2.2.14, 2.3.10, 2.3-next-M7, 4.0.0-RC2
> Reporter: Melloware
> Assignee: Werner Punz
> Priority: Major
> Attachments: csp-results.zip, mojarra-csp-new.txt
>
>
> Per BalusC:
> Since JSF 2.3 the default constructor of {{FacesWrapper}} subclasses has been
> deprecated in order to force implementors to instead use the constructor
> taking the wrapped instance (and to raise their awareness), so that logically
> the inherited {{getWrapped()}} method will be used throughout the
> implementation instead of the local {{wrapped}} variable. This will ensure
> that the correct implementation is returned and correct behavior is performed
> might the {{FacesWrapper}} implementation itself being wrapped by yet another
> {{FacesWrapper}} implementation further down the chain. Because, when the
> {{FacesWrapper}} implementation incorrectly/accidentally uses the local
> {{wrapped}} variable instead of the {{getWrapped()}} method, then that other
> {{FacesWrapper}} implementation will basically be completely ignored, hereby
> breaking the decorator pattern.
>
> PrimeFaces ticket: https://github.com/primefaces/primefaces/issues/9518
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