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From "Chris Cranford (JIRA)" <j...@apache.org>
Subject [jira] [Created] (WW-4667) ParametersInterceptor excludeParams only applies to first instance of params interceptor in paramsPrepareParamsStack
Date Sun, 24 Jul 2016 20:47:20 GMT
Chris Cranford created WW-4667:
----------------------------------

             Summary: ParametersInterceptor excludeParams only applies to first instance of
params interceptor in paramsPrepareParamsStack
                 Key: WW-4667
                 URL: https://issues.apache.org/jira/browse/WW-4667
             Project: Struts 2
          Issue Type: Bug
          Components: Core Interceptors
    Affects Versions: 2.5.1
            Reporter: Chris Cranford


I typically extend the existing stacks with my own interceptor references on an as needed
basis, as shown below.  

The problem I face is that when I use the {{paramsPrepareParamsStack}}, I am noticing that
the ParametersInterceptor excludes the custom defined entries on the first instance of the
named {{params}} interceptor; however the second instance in the stack ignores these settings.

{code}
<interceptor-stack name="customStack">
  <interceptor-ref name="myCustomInterceptor" />
  <interceptor-ref name="paramsPrepareParamsStack">
    <param name="fileUpload.maximumSize">20480000</param>
    <param name="params.excludeParams">dojo\..*,^struts\..*,^session\..*,^request\..*,^application\..*,^servlet(Request|Response)\..*,parameters\...*,submit,myObject\..*</param>
  </interceptor-ref>
</interceptor-stack>
{code}

I suspect the code is likely just applying the parameters to the first named instance and
breaking the loop rather than making sure _all_ instances of the named interceptor have the
parameters applied correctly during Struts2 bootstrapping.

The only workaround I've found is to avoid using the provided interceptor stack directly and
copy it into my custom stack and explicitly set the excludeParams explicitly on both _params_
interceptor instances.



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