[FLEX-23471] restoring a minimized window with WindowedApplicationSkin receives Runtime error

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Adobe Flex SDK 4.1 (Release)
• Component/s: Spark: Window
• Environment: Affected OS(s): All OS Platforms; Language Found: English
• Assignee: Adobe JIRA
• Reporter: Adobe JIRA
• Created: 15/Mar/10 13:53
• Updated: 19/Mar/10 08:36
• Resolved: 17/Mar/10 12:54

Description

Steps to reproduce:
1.compile and run test app
2.click "createAWindow" button
->it will create a window which has skinClass=spark.skins.spark.WindowedApplicationSkin
3.click "minimize" button
->it minimizes the window, which is expected.
4. click "restore" button
->receive run time error:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at spark.components.windowClasses::TitleBar/getCurrentSkinState()[E:\dev\4.x\frameworks\projects\airspark\src\spark\components\windowClasses\TitleBar.as:482]
at spark.components.supportClasses::SkinnableComponent/commitProperties()[E:\dev\4.x\frameworks\projects\spark\src\spark\components\supportClasses\SkinnableComponent.as:426]
at spark.components.windowClasses::TitleBar/commitProperties()[E:\dev\4.x\frameworks\projects\airspark\src\spark\components\windowClasses\TitleBar.as:427]
at mx.core::UIComponent/validateProperties()[E:\dev\4.x\frameworks\projects\framework\src\mx\core\UIComponent.as:7885]
at mx.managers::LayoutManager/validateProperties()[E:\dev\4.x\frameworks\projects\framework\src\mx\managers\LayoutManager.as:572]
at mx.managers::LayoutManager/doPhasedInstantiation()[E:\dev\4.x\frameworks\projects\framework\src\mx\managers\LayoutManager.as:730]
at mx.managers::LayoutManager/doPhasedInstantiationCallback()[E:\dev\4.x\frameworks\projects\framework\src\mx\managers\LayoutManager.as:1072]

Expected Results:

no error.

Workaround (if any):