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https://issues.apache.org/jira/browse/WW-4055?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13666962#comment-13666962
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Stefan Reich commented on WW-4055:
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@Martin and @Lukasz: I tried the workaround in the 2.x docs, but to no avail.
The root cause was that only the empty WEB-INF/classes directory was returned
by the Classloader. Not even a single jar or zip file. But again, my
weblogic-application.xml configures all org.apache.* namespaces to be loaded
from the war (it's complicated..), but I didn't confirm if that makes a
difference. I'll attach whatever I have end of next week...
> Convention plugin doesn't find any Action classes in EAR deployment on
> Weblogic 10 and 12
> -----------------------------------------------------------------------------------------
>
> Key: WW-4055
> URL: https://issues.apache.org/jira/browse/WW-4055
> Project: Struts 2
> Issue Type: Bug
> Components: Plugin - Convention
> Affects Versions: 2.3.14
> Reporter: Stefan Reich
> Fix For: 2.3.16
>
> Attachments: PackageBasedActionConfigBuilder.patch
>
>
> The weblogic container versions 10, 11 and 12 has a peculiar way of deploying
> ear and war files.
> It unpacks the ear and war file, and jars up the contents of WEB-INF classes
> into a new file: WEB-INF/lib/_wl_cls_gen.jar. After that, all content from
> WEB-INF/classes is deleted.
> The consequence is that the classloader will return a URL to the
> WEB-INF/classes directory when the plugin is searching for annotated classes,
> but it will be empty, so this plugin would never find any Action classes.
> I have a patch that has been verified to work on Weblogic 10 and 12.
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