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https://issues.apache.org/jira/browse/MYFACES-4442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17597805#comment-17597805
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Paul Nicolucci commented on MYFACES-4442:
-----------------------------------------
We can address the extenionless mapping here
:https://issues.apache.org/jira/browse/MYFACES-4447
> UnsupportedOperationException when calling getServletRegistrations from
> initFaces
> ---------------------------------------------------------------------------------
>
> Key: MYFACES-4442
> URL: https://issues.apache.org/jira/browse/MYFACES-4442
> Project: MyFaces Core
> Issue Type: Bug
> Components: General
> Affects Versions: 4.0.0-RC1
> Reporter: Paul Nicolucci
> Assignee: Paul Nicolucci
> Priority: Major
> Fix For: 4.0.0-RC2
>
>
> We're starting work to integration MyFaces 4.0 into the Open Liberty runtime.
> I've run into the following UnsupportedOperationException:
> SRVE9002E: You cannot start this operation from a programmatically added
> listener when using servlet-3.1 feature. (Operation: getServletRegistrations
> | Listener: org.apache.myfaces.webapp.StartupServletContextListener |
> Application: SimpleTest)
> Regardless of what the error says Servlet 6.0 is being used so that is not
> important. In Open Liberty we automatically add the
> org.apache.myfaces.webapp.StartupServletContextListener programmatically for
> applications we determine to be "Faces enabled".
>
> Previously we did not have this issue because of the following interface
> method:
> [https://github.com/apache/myfaces/blob/3.0.x/impl/src/main/java/org/apache/myfaces/spi/WebConfigProvider.java#L50]
> The method was removed in MyFaces 4.0.0.RC1 and that puts us into the
> position I'm seeing with the UnsupportedOperationException since according to
> the Servlet API you can not call getServletRegistrations from a
> programmatically added listener:
> [https://jakarta.ee/specifications/servlet/6.0/apidocs/jakarta.servlet/jakarta/servlet/servletcontext#getServletRegistrations(])
>
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