[jboss-jira] [JBoss JIRA] (WFLY-5053) You can't use static methods from interface in JSP

[Tomaz Cerar (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-5053?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13095598#comment-13095598 ] 

Tomaz Cerar commented on WFLY-5053:
-----------------------------------

We updated to 4.4.2 to fix WFLY-4406 that QE found.
I think only solution here is to wait for the upstream fix.

Somewhat related upstream bug, https://bugs.eclipse.org/bugs/show_bug.cgi?id=399780 but that was for implementing initial support.

Looking at the code of compiler, makes me question if problem is maybe in user configuration that is still using 1.7 as source/target level for JSPs
but using Java 8 feature, as this would explain it.

[~ehugonnet] could you verify/provide what was undertow subsystem config on system that has problems?

> You can't use static methods from interface in JSP
> --------------------------------------------------
>
>                 Key: WFLY-5053
>                 URL: https://issues.jboss.org/browse/WFLY-5053
>             Project: WildFly
>          Issue Type: Bug
>          Components: Web (Undertow)
>    Affects Versions: 9.0.1.Final
>            Reporter: ehsavoie Hugonnet
>            Assignee: Tomaz Cerar
>         Attachments: jsp-test.tar.gz
>
>
> The upgrade to ECJ 4.4.2 has broken the JSP compilation when using static methods from interface.
> Reverting to 4.3.1 fixes this.
> See reproducer



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