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https://issues.apache.org/jira/browse/WW-5587?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lukasz Lenart reassigned WW-5587:
---------------------------------
Assignee: Lukasz Lenart
> WithLazyParams interceptors lose parameters in stack configurations
> -------------------------------------------------------------------
>
> Key: WW-5587
> URL: https://issues.apache.org/jira/browse/WW-5587
> Project: Struts 2
> Issue Type: Bug
> Components: Core Interceptors
> Reporter: Lukasz Lenart
> Assignee: Lukasz Lenart
> Priority: Major
> Fix For: 7.2.0
>
>
> When interceptors implementing {{WithLazyParams}} are configured with
> parameters through interceptor stack references, the parameters are not
> stored in {{InterceptorMapping.getParams()}}, breaking the lazy parameter
> injection mechanism.
> h3. Steps to Reproduce:
> 1. Create an interceptor implementing WithLazyParams
> 2. Configure it in an interceptor stack with parameter overrides:
> {code:xml}
> <interceptor-ref name="stackName">
> <param name="interceptorName.paramName">value</param>
> </interceptor-ref>
> {code}
> 3. During action invocation, {{LazyParamInjector.injectParams()}} receives
> empty params map
> h3. Root Cause:
> {{InterceptorBuilder.constructParameterizedInterceptorReferences()}}} at line
> 177 creates {{InterceptorMapping}} without passing the params map:
> {code:java}
> new InterceptorMapping(key, interceptor) // Missing params!
> {code}
> This should be:
> {code:java}
> new InterceptorMapping(key, interceptor, map)
> {code}
> h3. Impact:
> - WW-5586 fix successfully sets properties on interceptor instances at
> factory time
> - However, {{LazyParamInjector}} cannot re-evaluate expression parameters at
> invocation time because {{InterceptorMapping.getParams()}} returns empty
> - This breaks the dual initialization pattern for {{WithLazyParams}}
> interceptors in stack configurations
> h3. Expected Behavior:
> {{InterceptorMapping.getParams()}} should contain the parameter map so
> LazyParamInjector can re-evaluate expressions like {{$\{someValue\}}} at each
> action invocation.
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