Action - component: start(Writer) is called twice
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                 Key: WW-2462
                 URL: https://issues.apache.org/struts/browse/WW-2462
             Project: Struts 2
          Issue Type: Bug
    Affects Versions: 2.0.9
            Reporter: Ralf Fischer


After initializing the component bean and injecting some stuff into it, the 
doStartTag in ComponentTagSupport calls populateParams(). As last call in 
ActionTag#populateParams(), line 57, the start(Writer)-Method is called on the 
component(Action, in this case). 

After that, back in ComponentTagSupport, line 54, start(Writer) is invoked 
again. 

Suggested fix: Remove call to start(Writer from ActionTag#populateParams(), 
line 57. 

Cheers,
-Ralf

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