[FLEX-15736] RTE in WindowedSystemManager.findLastActiveForm() when setting a window to invisible in the close handler of an Alert

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: Adobe Flex SDK 3.2 (Release)
• Fix Version/s: Adobe Flex SDK 3.2 (Release)
• Component/s: mx: Window
• Environment: Affected OS(s): Windows; Affected OS(s): Windows XP; Language Found: English
• Assignee: Adobe JIRA
• Reporter: Adobe JIRA
• Created: 17/Sep/08 11:42
• Updated: 19/Sep/08 10:24
• Resolved: 18/Sep/08 19:05

Description

Using Flex SDK 3.2.3238 and 9/11 AIR drop

Steps to reproduce:
1. Create and open a Window instance
2. call Alert.show() with the window instance as the parent
3. attach an event listener for CloseEvent.CLOSE to the Alert instance, where the only thing the event handler does is set Window.visible=false
4. click OK button to dismiss Alert

Actual Results: stack trace, see below:
Error
at mx.managers::WindowedSystemManager/findLastActiveForm()[C:\autobuild\3.0.x\frameworks\projects\airframework\src\mx\managers\WindowedSystemManager.as:912]
at mx.managers::WindowedSystemManager/deactivateForm()[C:\autobuild\3.0.x\frameworks\projects\airframework\src\mx\managers\WindowedSystemManager.as:877]
at mx.managers::WindowedSystemManager/deactivate()[C:\autobuild\3.0.x\frameworks\projects\airframework\src\mx\managers\WindowedSystemManager.as:854]
at mx.managers::FocusManager/hideHandler()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\managers\FocusManager.as:1544]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\core\UIComponent.as:9294]
at mx.core::Window/set visible()[C:\autobuild\3.0.x\frameworks\projects\airframework\src\mx\core\Window.as:931]
at <anonymous>()[C:\flex\FindLastActiveFormError\src\FindLastActiveFormError.mxml:17]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\core\UIComponent.as:9294]
at mx.controls.alertClasses::AlertForm/removeAlert()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\controls\alertClasses\AlertForm.as:500]
at mx.controls.alertClasses::AlertForm/clickHandler()[C:\autobuild\3.0.x\frameworks\projects\framework\src\mx\controls\alertClasses\AlertForm.as:541]

Expected Results: No RTE

Workaround (if any): not that I know of