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https://issues.apache.org/jira/browse/WW-4105?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13681969#comment-13681969
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Maurizio Cucchiara commented on WW-4105:
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In addition to Lukasz's requests, could you please attach the whole stacktrace?
> Struts2 raise java.lang.ClassCastException when Result type is chain
> ---------------------------------------------------------------------
>
> Key: WW-4105
> URL: https://issues.apache.org/jira/browse/WW-4105
> Project: Struts 2
> Issue Type: Bug
> Components: Core Interceptors
> Affects Versions: 2.3.14.3
> Environment: tomcat6 struts2.3.*
> Reporter: zhouyong
> Fix For: 2.3.x
>
>
> java.lang.ClassCastException: A action cannot be cast to B action when A
> chain to B.
> ChainingInterceptor.java has a bug in intercept function when Result type is
> chain.
> Intercept function of ChainingInterceptor will change action member of
> DefaultActionInvocation class. And invokeAction of DefaultActionInvocation
> will fail in line 450.
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