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https://issues.apache.org/jira/browse/DELTASPIKE-871?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14485241#comment-14485241
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Thomas Hug commented on DELTASPIKE-871:
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Which transaction strategy do you have configured?
> save() and findByxxx() in same transaction gives constraint violation
> exception
> -------------------------------------------------------------------------------
>
> Key: DELTASPIKE-871
> URL: https://issues.apache.org/jira/browse/DELTASPIKE-871
> Project: DeltaSpike
> Issue Type: Bug
> Components: Data-Module
> Affects Versions: 1.2.0
> Environment: Windows-7, Java-8, Netbeans-8.0.2
> Reporter: Md Kamaruzzaman
> Assignee: Thomas Hug
>
> It seems like when in the same EJB transaction, save() and findByxxx() is
> called, then delta-spike inserts the entity twice [once in save() and other
> time in findByxxx()] and gives a constraint violation exception.
> After some debuggin, it seems like save() gives a "INSERT" query in DB and
> findByxxx() method calls a flush which again gives the same "INSERT" query in
> DB [INSERT query from save() is not removed from EntityManager] and gives
> constraint violation exception.
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