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Shigeru Nakagaki commented on FLEX-29002: ----------------------------------------- This still happens if compiler.accessible = false and a screen reader was installed, when a modal popUp like mx:Alert is closed. TypeError: Error #1009: Cannot access a property or method of a null object reference. at mx.managers::PopUpManagerImpl/handleAccessibilityForNestedPopups()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/managers/PopUpManagerImpl.as:1541] at mx.managers::PopUpManagerImpl/removeModalPopUpAccessibility()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/managers/PopUpManagerImpl.as:1482] at mx.managers::PopUpManagerImpl/popupRemovedHandler()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/managers/PopUpManagerImpl.as:1230] at flash.display::DisplayObjectContainer/removeChild() > RunTime Error #1009 at > mx.managers::PopUpManagerImpl/addModalPopUpAccessibility() when displaying > more than one modal popup via PopUpManager on top of each other. On Windows 7 > running on some PCs > --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- > > Key: FLEX-29002 > URL: https://issues.apache.org/jira/browse/FLEX-29002 > Project: Apache Flex > Issue Type: Bug > Components: PopUp Manager > Affects Versions: Adobe Flex SDK Previous > Environment: Affected OS(s): Windows > Affected OS(s): Windows 7 > Language Found: English > Reporter: Adobe JIRA > Assignee: Carol Frampton > Fix For: Adobe Flex SDK Next, Apache Flex 4.10.0 > > > Steps to reproduce: > 1. in the AIR application, create modal popup via popupmanager -> ok. > 2. on the popup, create another modal popup via popupmanager (so we have two > modal popups one on top of the other) -> RT error #1009. > 3. close top popup, due to RT error #1009 modal shade stays on stage and > keeps blocking the application. > > Actual Results: > Popupmanager closes modal titlewindow, but the modal shade stays on display > due to RunTime error #1009 and so application becomes non-operable. > > Expected Results: > Popupmanager should close the modal titlewindow along with the modal shade > as it does if only one modal popup was invoked. > > Workaround (if any): > On Windows7 Control Panel, disable some stuff in control panel (Attachments) > and reboot OS. Trully, this works. > > Note: > This happens only on Windows 7 OS running on some All-In-One PCs (eg.: MSI > AE2050). Bug is connected with the accessibility OS provides, so we can fix > the issue by configuring some OS parameters. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira