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https://issues.apache.org/jira/browse/FLEX-33987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13844450#comment-13844450
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Alexander Mazuruk commented on FLEX-33987:
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Actually this is a spaghetti code? Don't you see it?
Unfortunately I have no definite test case for it, just had to impose my monkey
patches as issues to you guys, to make sdk code a better quality.
Just open the code and read it:
private function getNextFocusManagerComponent2(
backward:Boolean = false,
fromObject:DisplayObject = null,
fromIndex:int = FROM_INDEX_UNSPECIFIED):FocusInfo
{
if (focusableObjects.length == 0)
return null;
This is your test case, here it is "return null;"
> FocusManager NPE
> ----------------
>
> Key: FLEX-33987
> URL: https://issues.apache.org/jira/browse/FLEX-33987
> Project: Apache Flex
> Issue Type: Bug
> Affects Versions: Apache Flex 4.11.0
> Reporter: Alexander Mazuruk
> Priority: Critical
>
> FocusManager Null pointer exception occurs.
> This:
> public function getNextFocusManagerComponent(
> backward:Boolean = false):IFocusManagerComponent
> {
> return getNextFocusManagerComponent2(backward,
> fauxFocus).displayObject as IFocusManagerComponent;
> }
> Must be rewritten as:
> public function getNextFocusManagerComponent(
> backward:Boolean = false):IFocusManagerComponent
> {
> const focusInfo:FocusInfo = getNextFocusManagerComponent2(backward,
> fauxFocus);
> return focusInfo ? focusInfo.displayObject as IFocusManagerComponent
> : null;
> }
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