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https://issues.apache.org/jira/browse/DELTASPIKE-1378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gerhard Petracek reassigned DELTASPIKE-1378:
--------------------------------------------
Assignee: Thomas Andraschko
> EntityManagerRefLookup returns null globalEntityManager when
> lazyInitGlobalEntityManager is called by multiple threads
> ----------------------------------------------------------------------------------------------------------------------
>
> Key: DELTASPIKE-1378
> URL: https://issues.apache.org/jira/browse/DELTASPIKE-1378
> Project: DeltaSpike
> Issue Type: Bug
> Components: JPA-Module
> Affects Versions: 1.9.0
> Reporter: Raymond Domingo
> Assignee: Thomas Andraschko
> Priority: Major
> Fix For: 1.9.1
>
>
> *Situation*
> If multiple threads invoke lazyInitGlobalEntityManager at same time and
> lazyInitGlobalEntityManager isn't invoked before. Some of these threads might
> end up with a null entitymanager, because lazyInitGlobalEntityManager isn't
> synchronized (or this.globalEntityManagerInitialized = true is at wrong
> place).
> Might be *important* to fix this, because In rare situations this might break
> your application and even cause inconsistent data.
> *Problem*
> entityManager is null after initialization is concurrently called
> *Expected*
> entityManager won't be null when initialized concurrently
>
> *PR*
> [https://github.com/apache/deltaspike/pull/89]
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