WindowShade - No constructor

What steps will reproduce the problem?
1. add WindowShade without styles (as in example)
2. instanciate
3.

What is the expected output? What do you see instead?
The app is supposed to start ; the component to show up

What version of the product are you using? On what operating system?
Flexlib 2.5/flex 4

Please provide any additional information below.

TypeError: Error #1007: Tentative d'instanciation sur un élément non 
constructeur.
    at flexlib.containers::WindowShade/createOrReplaceHeaderButton()[/Users/groumly/Development/workspace-3.5-flex4/FlexLib/src/flexlib/containers/WindowShade.as:258]
    at flexlib.containers::WindowShade/createChildren()[/Users/groumly/Development/workspace-3.5-flex4/FlexLib/src/flexlib/containers/WindowShade.as:416]
    at mx.core::UIComponent/initialize()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:7634]
    at mx.core::Container/initialize()[E:\dev\4.y\frameworks\projects\mx\src\mx\core\Container.as:3131]
    at mx.core::UIComponent/http://www.adobe.com/2006/flex/mx/internal::childAdded()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:7495]
    at mx.core::UIComponent/addChildAt()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:7199]
    at spark.components::Group/addDisplayObjectToDisplayList()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\Group.as:2037]
    at spark.components::Group/http://www.adobe.com/2006/flex/mx/internal::elementAdded()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\Group.as:1628]
    at spark.components::Group/setMXMLContent()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\Group.as:633]
    at spark.components::Group/set mxmlContent()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\Group.as:573]
    at spark.components::SkinnableContainer/set mxmlContent()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\SkinnableContainer.as:657]
    at spark.components::SkinnableContainer/createDeferredContent()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\SkinnableContainer.as:1050]
    at spark.components::SkinnableContainer/createContentIfNeeded()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\SkinnableContainer.as:1078]
    at spark.components::SkinnableContainer/createChildren()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\SkinnableContainer.as:885]
    at spark.components::Application/createChildren()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\Application.as:1504]
    at mx.core::UIComponent/initialize()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:7634]
    at spark.components::Application/initialize()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\Application.as:1355]
    at OctanPoC/initialize()
    at mx.managers.systemClasses::ChildManager/childAdded()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\systemClasses\ChildManager.as:189]
    at mx.managers.systemClasses::ChildManager/initializeTopLevelWindow()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\systemClasses\ChildManager.as:359]
    at mx.managers::SystemManager/initializeTopLevelWindow()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\SystemManager.as:3057]
    at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::kickOff()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\SystemManager.as:2843]
    at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::preloader_completeHandler()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\SystemManager.as:2723]
    at flash.events::EventDispatcher/dispatchEventFunction()
    at flash.events::EventDispatcher/dispatchEvent()
    at mx.preloaders::Preloader/timerHandler()[E:\dev\4.y\frameworks\projects\framework\src\mx\preloaders\Preloader.as:542]
    at flash.utils::Timer/_timerDispatch()
    at flash.utils::Timer/tick()
Original issue reported on code.google.com by tesco...@ippon.fr on 2 Apr 2012 at 12:41
wiln / flexlib

WindowShade - No constructor #372
