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https://issues.apache.org/jira/browse/CAY-2382?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nikita Timofeev closed CAY-2382.
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Resolution: Fixed
*4.1*
https://github.com/apache/cayenne/commit/9382e47338c65d0208f731a153d571c7a2789faf
*4.0*
https://github.com/apache/cayenne/commit/812375276ed03be36cf94bf267c15695157fc65c
> Lack of synchronization in DataContext serialization
> ----------------------------------------------------
>
> Key: CAY-2382
> URL: https://issues.apache.org/jira/browse/CAY-2382
> Project: Cayenne
> Issue Type: Bug
> Components: Core Library
> Affects Versions: 4.0.B2, 4.1.M1
> Reporter: Nikita Timofeev
> Assignee: Nikita Timofeev
> Fix For: 4.0.B3, 4.1.M2
>
>
> {{DataContext}} is designed to be thread safe, however there is no
> synchronization in serialization.
> This problem shows itself in *4.1.M1* version as
> {{ConcurrentModificationException}} when trying to serialize Context while
> other threads add or delete objects in it.
> In *4.1.M1* underlying data structure was changed, thus revealing this
> problem. But it also affects earlier versions of Cayenne.
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