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https://issues.apache.org/jira/browse/WW-4528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14636668#comment-14636668
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Lukasz Lenart commented on WW-4528:
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:(
> ChainingInterceptor does not handle lists correctly for excludes and includes
> -----------------------------------------------------------------------------
>
> Key: WW-4528
> URL: https://issues.apache.org/jira/browse/WW-4528
> Project: Struts 2
> Issue Type: Bug
> Components: Core Interceptors
> Affects Versions: 2.3.24
> Reporter: nikos dimitrakas
> Fix For: 2.5
>
>
> The ChainingInterceptor has two parameters includes and excludes that
> according to the documentation and the code are Collection<String>, but the
> setters don't handle the specified values (that are loaded from the
> struts.xml) as lists. So if i specify for example
> <interceptor-ref name="chain">
> <param name="includes">x,y,z</param>
> </interceptor-ref>
> the includes variable of the interceptor becomes a Collection of one string
> with the value "x,y,z" instead of a Collection of three strings "x", "y" and
> "z".
> The behaviour should instead be similar to the ParametersInterceptor's
> excludeParams or MethodFilterInterceptor's excludeMethods and includeMethods.
> It would also be good if the documentation included information and an
> example with a list of parameters. The current documentation
> (https://struts.apache.org/docs/chaining-interceptor.html) only says that the
> parameters are lists, but the example only has one parameter
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