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https://issues.apache.org/jira/browse/OPENJPA-1646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15312198#comment-15312198
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Rick Curtis commented on OPENJPA-1646:
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> there still is an issue with the initialization when done concurrently:
Please explain further?
As I mentioned, DataCacheManager init happens at EMF creation and that
operation by nature is single threaded. Are you seeing a problem, or just
scanning for double checked locking?
> DataCacheManager initialization still isn't thread safe.
> --------------------------------------------------------
>
> Key: OPENJPA-1646
> URL: https://issues.apache.org/jira/browse/OPENJPA-1646
> Project: OpenJPA
> Issue Type: Bug
> Components: datacache
> Affects Versions: 1.2.2, 2.0.0
> Reporter: Rick Curtis
> Assignee: Rick Curtis
> Fix For: 2.1.0
>
>
> OPENJPA-1559 reduced the timing window but the problem still exists.
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