[FLEX-16230] SystemManager RTEs when quickly loading and unloading Gumbo components in SWFLoader

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Adobe Flex SDK 3.2 (Release)
• Fix Version/s: Adobe Flex SDK 3.3 (Release)
• Component/s: Marshall Plan (Versioning)
• Environment: Affected OS(s): All OS Platforms; Affected OS(s): All OS Platforms; Language Found: English
• Assignee: Adobe JIRA
• Reporter: Adobe JIRA
• Created: 21/Oct/08 15:35
• Updated: 15/Apr/11 15:36
• Resolved: 14/Jan/09 12:59

Description

Steps to reproduce:
1. Download and run attached sample.
2. Quickly click the three buttons at the top of the Flex application.

Actual Results:
RTE. You usually get one of 2-3 errors:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at mx.managers::SystemManager/resizeMouseCatcher()[E:\dev\trunk\frameworks\projects\framework\src\mx\managers\SystemManager.as:2811]
at mx.managers::SystemManager/preloader_preloaderDoneHandler()[E:\dev\trunk\frameworks\projects\framework\src\mx\managers\SystemManager.as:2973]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.preloaders::Preloader/displayClassCompleteHandler()[E:\dev\trunk\frameworks\projects\framework\src\mx\preloaders\Preloader.as:434]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.preloaders::DownloadProgressBar/timerHandler()[E:\dev\trunk\frameworks\projects\framework\src\mx\preloaders\DownloadProgressBar.as:1451]
at mx.preloaders::DownloadProgressBar/initCompleteHandler()[E:\dev\trunk\frameworks\projects\framework\src\mx\preloaders\DownloadProgressBar.as:1503]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.preloaders::Preloader/dispatchAppEndEvent()[E:\dev\trunk\frameworks\projects\framework\src\mx\preloaders\Preloader.as:291]
at mx.preloaders::Preloader/appCreationCompleteHandler()[E:\dev\trunk\frameworks\projects\framework\src\mx\preloaders\Preloader.as:442]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()[E:\dev\trunk\frameworks\projects\framework\src\mx\core\UIComponent.as:9482]
at mx.core::UIComponent/set initialized()[E:\dev\trunk\frameworks\projects\framework\src\mx\core\UIComponent.as:1161]
at mx.managers::LayoutManager/doPhasedInstantiation()[E:\dev\trunk\frameworks\projects\framework\src\mx\managers\LayoutManager.as:718]
at Function/http://adobe.com/AS3/2006/builtin::apply()
at mx.core::UIComponent/callLaterDispatcher2()[E:\dev\trunk\frameworks\projects\framework\src\mx\core\UIComponent.as:8810]
at mx.core::UIComponent/callLaterDispatcher()[E:\dev\trunk\frameworks\projects\framework\src\mx\core\UIComponent.as:8750]

Expected Results:
No RTE.

Workaround (if any):
Slow down on the button clicking, man!