paramsPrepareParams stack should execute checkbox interceptor earlier
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                 Key: WW-2850
                 URL: https://issues.apache.org/struts/browse/WW-2850
             Project: Struts 2
          Issue Type: Bug
          Components: Integration
    Affects Versions: 2.1.2
            Reporter: Sami Dalouche


The current paramsPrepareParams interceptor executes the checkbox interceptor 
late in the chain, which results in the 2 params interceptor not applying the 
same parameter set if there are booleans.
Instead, it should look like :

<interceptor-stack name="paramsPrepareParamsStack">
                <interceptor-ref name="exception"/>
                <interceptor-ref name="alias"/>
                <interceptor-ref name="i18n"/>
                <interceptor-ref name="checkbox"/>
                <interceptor-ref name="params"/>
                <interceptor-ref name="servletConfig"/>
                <interceptor-ref name="prepare"/>
                <interceptor-ref name="chain"/>
                <interceptor-ref name="modelDriven"/>
                <interceptor-ref name="fileUpload"/>
                <!-- BAD <interceptor-ref name="checkbox"/>-->
                <interceptor-ref name="staticParams"/>
                <interceptor-ref name="actionMappingParams"/>
                <interceptor-ref name="params"/>
                <interceptor-ref name="conversionError"/>
                <interceptor-ref name="validation">
                    <param name="excludeMethods">input,back,cancel</param>
                </interceptor-ref>
                <interceptor-ref name="workflow">
                    <param name="excludeMethods">input,back,cancel</param>
                </interceptor-ref>
            </interceptor-stack>

The additional bonus is that you get rid of stupid OGNL exceptions trying to 
map __checkbox_* parameters during the first params execution :)

regards,
Sami Dalouche

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