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https://issues.apache.org/jira/browse/SLING-1545?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Carsten Ziegeler closed SLING-1545.
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> ScripteEngineManagerFactory is not thread safe
> ----------------------------------------------
>
>                 Key: SLING-1545
>                 URL: https://issues.apache.org/jira/browse/SLING-1545
>             Project: Sling
>          Issue Type: Improvement
>          Components: Scripting
>    Affects Versions: Scripting Core 2.0.14
>            Reporter: Felix Meschberger
>            Assignee: Carsten Ziegeler
>             Fix For: Scripting Core 2.0.14
>
>
> The ScriptEngineManagerFactory class is not thread-safe:
>   * Access to the engineSpiBundles, engineSpiServices fields (lists) are not 
> guarded
>   * Calls to refreshScriptEngineManager are not guarded
> This may cause improper states under certain circumstances.
> Accesses to these internal fields and methods should properly be guarded.
> In addition, replacement of the List as collection of the SPI bundles and 
> service by Set should be considered.

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