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https://issues.apache.org/jira/browse/FLEX-33052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13755934#comment-13755934
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Vitali Kabak commented on FLEX-33052:
-------------------------------------
I also found a workaround for my application, but "workaround" approach is not
always acceptable.
For example my "parent" app is a kind of dashboard, which loads other apps as
children. These children are sometimes third-party apps (which met some simple
requirements), but I can't put a requirement "If you use charts, please insert
this block of code somewhere in your app..."
This is definitely a bug and I believe it should be fixed in Flex SDK.
If SDK (or compiler, since this happens in auto-generated code) has a good
reason not to create duplicate styles in child app, then chart framework should
be modified. As I mentioned before, only chart classes use result of
styleManager.getStyleDeclaration without checking whether it null or not.
> Runtime error when using a chart in a module in an app that is also using
> charts
> --------------------------------------------------------------------------------
>
> Key: FLEX-33052
> URL: https://issues.apache.org/jira/browse/FLEX-33052
> Project: Apache Flex
> Issue Type: Bug
> Components: Charts
> Affects Versions: Adobe Flex SDK Previous
> Environment: Affected OS(s): All OS Platforms
> Language Found: English
> Reporter: Adobe JIRA
> Assignee: Alex Harui
> Attachments: chartsNoMerge.css
>
>
> This is a regression in 4.6. It doesn't matter if the modules are Spark or
> not. Works fine in 4.5.1 and below.
> See attached FB project.
> Steps to reproduce:
> 1. Create an app that uses a chart and create a module that also uses a chart.
>
> Actual Results:
>
> TypeError: Error #1009: Cannot access a property or method of a null object
> reference.
> at
> mx.charts.chartClasses::ChartBase/initStyles()[E:\dev\4.y\frameworks\projects\charts\src\mx\charts\chartClasses\ChartBase.as:1862]
>
> Expected Results:
>
> No error and chart loads fine.
>
> Workaround (if any):
>
> Copy chart styles from module's parent styleManager into the module's own
> styleManager.
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