[jboss-jira] [JBoss JIRA] (WFLY-11082) ClassCastExceptions and unexpected ServletContainerInitializer executions

[Brian Stansberry (Jira)]

    [ https://issues.jboss.org/browse/WFLY-11082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13708659#comment-13708659 ] 

Brian Stansberry commented on WFLY-11082:
-----------------------------------------

"ServiceLoader provide only one instance of SCI"

Looking at the reproducer I see two "createJar()" calls which means two addAsServiceProvider(ServletContainerInitializer.class, SCI.class). Both of those META-INF/services files are visible when the war starts which means two ServiceLoader calls. It doesn't matter that there's only one Impl1.class.

If there's something I missed that means one of the META-INF/services files should not be visible, please let reopen. Otherwise I don't see a bug here.


> ClassCastExceptions and unexpected ServletContainerInitializer executions
> -------------------------------------------------------------------------
>
>                 Key: WFLY-11082
>                 URL: https://issues.jboss.org/browse/WFLY-11082
>             Project: WildFly
>          Issue Type: Bug
>          Components: Web (Undertow)
>    Affects Versions: 14.0.1.Final
>            Reporter: Alexander Kudrevatykh
>            Assignee: Bartosz Baranowski
>            Priority: Major
>         Attachments: dependencies.zip
>
>
> I got unexpected ClassCastExceptions in setup as in attached test
> ServiceLoader provide only one instance of SCI, but wildlfy executes it twice
> More weird - wrong Set of classes passed to onStartup method - classes are not extends @HandlesTypes annotation (because they loaded with different classloaders)
> sorry for complex description, look for attached test



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