[FLEX-33349] TypeError #1009 happening in dataProviderRefreshed() of List.as after refreshing the dataProvider of Combobox

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Apache Flex 4.9.0
• Fix Version/s: Apache Flex 4.10.0
• Component/s: Spark: DataGrid
• Labels: Datagrid RTE Spark itemEditorSession itemeditor null
• Environment: All
• Assignee: Carlos Rovira
• Reporter: João Sérgio Nobre Saleiro
• Created: 15/Jan/13 14:52
• Updated: 27/Mar/13 02:21
• Resolved: 27/Mar/13 02:21

Description

a) This RTE is quite hard to reproduce, and I wasn't able to build a simple scenario to demonstrate it
b) It happens occasionally, in 20-30% of the tries
c) It happens after the user ends an itemEditorSession of a Spark ItemEditor used in a Spark DataGrid.
d) It's a null error on line 1479 (dataProviderRefreshed) of List.as. dataGroup is null when the function is called, causing the RTE.

The RTE follows below:

TypeError: Error #1009: Cannot access a property or method of a null object reference.
at Function/<anonymous>()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/spark/src/spark/components/List.as:1479]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/core/UIComponent.as:13160]
at mx.managers::LayoutManager/doPhasedInstantiation()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/managers/LayoutManager.as:852]
at mx.managers::LayoutManager/validateNow()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/managers/LayoutManager.as:886]
at mx.core::UIComponent/commitCurrentState()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/core/UIComponent.as:10513]
at mx.core::UIComponent/setCurrentState()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/core/UIComponent.as:10331]
at mx.core::UIComponent/set currentState()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/core/UIComponent.as:6433]
at com.boonzi.desktop.core.view.components::BigTooltip/set displayPopUp()[C:\webfuel\boonzi\trunk\boonzi-desktop\src\com\boonzi\desktop\core\view\components\BigTooltip.mxml:33]
at mx.binding::Binding/defaultDestFunc()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/binding/Binding.as:290]
at Function/http://adobe.com/AS3/2006/builtin::call()
at mx.binding::Binding/innerExecute()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/binding/Binding.as:493]
at Function/http://adobe.com/AS3/2006/builtin::apply()
at mx.binding::Binding/wrapFunctionCall()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/binding/Binding.as:403]
at mx.binding::Binding/execute()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/binding/Binding.as:341]
at mx.binding::Binding/watcherFired()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/binding/Binding.as:519]
at mx.binding::Watcher/notifyListeners()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/binding/Watcher.as:319]
at mx.binding::PropertyWatcher/eventHandler()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/binding/PropertyWatcher.as:385]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at com.boonzi.desktop.transactions.model::TransactionModel/dispatchEvent()
at com.boonzi.desktop.transactions.model::TransactionModel/set numberOfCategorizedImportedTransactions()
at com.boonzi.desktop.transactions.view::ImportStatementsView/tryToShowCategoryPopup()[C:\webfuel\boonzi\trunk\boonzi-desktop\src\com\boonzi\desktop\transactions\view\ImportStatementsView.as:1512]
at com.boonzi.desktop.transactions.view::ImportStatementsView/setCategory()[C:\webfuel\boonzi\trunk\boonzi-desktop\src\com\boonzi\desktop\transactions\view\ImportStatementsView.as:729]
at Function/http://adobe.com/AS3/2006/builtin::apply()
at org.swizframework.utils.event::EventHandler/handleEvent()[/Users/Chris/Documents/my_projects/swizframework-git/swiz-framework/src/org/swizframework/utils/event/EventHandler.as:124]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/core/UIComponent.as:13160]
at com.boonzi.desktop.skins.mitra.datagrid::ImportStatementsCategoryEditor/save()[C:\webfuel\boonzi\trunk\boonzi-desktop\src\com\boonzi\desktop\skins\mitra\datagrid\ImportStatementsCategoryEditor.mxml:88]
at com.boonzi.desktop.skins.mitra.datagrid::ImportStatementsCategoryEditor/griditemeditor1_focusOutHandler()[C:\webfuel\boonzi\trunk\boonzi-desktop\src\com\boonzi\desktop\skins\mitra\datagrid\ImportStatementsCategoryEditor.mxml:98]
at com.boonzi.desktop.skins.mitra.datagrid::ImportStatementsCategoryEditor/___ImportStatementsCategoryEditor_GridItemEditor1_focusOut()[C:\webfuel\boonzi\trunk\boonzi-desktop\src\com\boonzi\desktop\skins\mitra\datagrid\ImportStatementsCategoryEditor.mxml:3]
at flash.display::Stage/set focus()
at mx.core::UIComponent/setFocus()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/framework/src/mx/core/UIComponent.as:9913]
at spark.components::DataGrid/setFocus()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/spark/src/spark/components/DataGrid.as:2354]
at spark.components.gridClasses::DataGridEditor/http://www.adobe.com/2006/flex/mx/internal::destroyItemEditor()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/spark/src/spark/components/gridClasses/DataGridEditor.as:521]
at spark.components.gridClasses::DataGridEditor/saveItemEditorSession()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/spark/src/spark/components/gridClasses/DataGridEditor.as:961]
at spark.components.gridClasses::DataGridEditor/endEdit()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/spark/src/spark/components/gridClasses/DataGridEditor.as:923]
at spark.components.gridClasses::DataGridEditor/endItemEditorSession()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/spark/src/spark/components/gridClasses/DataGridEditor.as:855]
at spark.components::DataGrid/endItemEditorSession()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/spark/src/spark/components/DataGrid.as:3841]
at spark.components.gridClasses::DataGridEditor/editor_keyFocusChangeHandler()[/Users/justinmclean/Documents/ApacheFlexSDK/frameworks/projects/spark/src/spark/components/gridClasses/DataGridEditor.as:1624]