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https://issues.apache.org/jira/browse/WW-5581?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lukasz Lenart updated WW-5581:
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Fix Version/s: 6.9.0
> Freemarker 2.3.33 causes bytecode version compatibility issues when
> transitively provided by Struts 6
> -----------------------------------------------------------------------------------------------------
>
> Key: WW-5581
> URL: https://issues.apache.org/jira/browse/WW-5581
> Project: Struts 2
> Issue Type: Bug
> Affects Versions: 6.6.0, 6.6.1, 6.7.0, 6.7.4, 6.8.0
> Reporter: Frédéric Hannes
> Priority: Critical
> Fix For: 6.9.0
>
>
> Freemarker 2.3.33 introduced an issue with Java 8 because it introduced a
> files for newer versions of Java. This seems to introduce issues in some
> application servers, as well as with the Maven Enforcer Plugin when it checks
> for bytecode compatibility with Java 8. This issue was resolved in version
> 2.3.34 of Freemarker
> ([https://freemarker.apache.org/docs/versions_2_3_34.html)] with PR110:
> [https://github.com/apache/freemarker/pull/110]
> Struts 6 still has not updated to the latest version of Freemarker to resolve
> this issue, unlike version 7. But Struts 6 still targets older versions of
> the JEE spec with Java EE, that still support Java 8, so this can cause
> compatibility issues if the project using Struts does not explicitly replace
> the Freemarker dependency with the latest version.
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