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https://issues.apache.org/jira/browse/WW-4645?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15350216#comment-15350216
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Lukasz Lenart commented on WW-4645:
-----------------------------------
In such case you won't be able exclude {{java.lang.Object}} as this will block
everything. And now {{java.lang.Object}} is defined as an excluded class in
{{struts-default.xml}}
> SecurityMemberAccess exclude class design issue
> ------------------------------------------------
>
> Key: WW-4645
> URL: https://issues.apache.org/jira/browse/WW-4645
> Project: Struts 2
> Issue Type: Bug
> Components: Core Actions
> Affects Versions: 2.3.20
> Reporter: Raintung Li
> Fix For: 2.3.30, 2.5.2
>
>
> In the isClassExcluded method invoke
> targetClass.isAssignableFrom(excludedClass), that mean targetClass must be
> parent class of excludedClass or same as excludedClass.
> How can enumerate all son classes in the excluded classes?
> Why not opposite? I only prevent the parent class, all son classes also be
> prevented.
> The EX: excludedClass.isAssignableFrom(targetClass)
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