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https://issues.apache.org/jira/browse/CONFIGURATION-486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13232049#comment-13232049
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Sebb commented on CONFIGURATION-486:
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HierarchicalConfiguration.defaultExpressionEngine
> BeanHelper.setDefaultBeanFactory() is thread-hostile and not thread-safe
> ------------------------------------------------------------------------
>
> Key: CONFIGURATION-486
> URL: https://issues.apache.org/jira/browse/CONFIGURATION-486
> Project: Commons Configuration
> Issue Type: Bug
> Reporter: Sebb
>
> BeanHelper.setDefaultBeanFactory() sets a private static field.
> This is thread-hostile, because different threads cannot safely use different
> factories.
> It's also not thread-safe, as the variable is not guaranteed to be published
> safely.
> Should either make the variable volatile, or synchronize both getter and
> setter.
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