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https://issues.apache.org/jira/browse/WW-5079?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17118296#comment-17118296
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Lee commented on WW-5079:
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Hi [~lukaszlenart], pls see the answer below:
+What version of Struts 2 were you using for the project before the upgrade+
(e.g. 2.3.37, 2.5.20)
We upgrade from Struts2 2.3.35.
+Is there anything strange in your application's logs or the WAS logs that
precedes the "Could not find required filter class" exception+ ?
Actually it's production environment and due to this issue we have to restart
the server once occur that. So many logs has been flushed due to the restart.
Now we didn't found any strange logs before this , but there're many Filter and
Listener even tag class show the ClassNotFound issue as well.
And i will try to downgrade the javassist-3.26.0-GA.jar to the
javassist-3.25.0-GA.jar to see what happen. Thanks for your advice.
> Could not find StrutsPrepareAndExecuteFilter sometime in WAS server
> -------------------------------------------------------------------
>
> Key: WW-5079
> URL: https://issues.apache.org/jira/browse/WW-5079
> Project: Struts 2
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.5.22
> Environment: Please see our environment below:
> Application server: Websphere application server 8.5
> JDK version: 7.0
> Reporter: Lee
> Priority: Major
> Fix For: 2.6
>
> Attachments: dependency.png, err_log.txt
>
>
> We upgrade the Struts version to 2.5.22 recently.
> The new version working well in our testing enviroment. But after moved to
> production. After some time it's been used. The system throw out exception
> for 'Could not find required filter class -
> org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.class'.
> I used the minmal struts 2.5.22 jars download from Struts website, because of
> our security scan application notify that javassist-3.20.0-GA.jar is out of
> date, so i replace it to 3.26.0-GA. Could this issue related to this change?
> Thanks a lot.
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