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https://issues.apache.org/jira/browse/OPENJPA-1762?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Fay Wang closed OPENJPA-1762.
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> javax.persistence.lock.scope EXTENDED doesn't properly lock join tables
> -----------------------------------------------------------------------
>
> Key: OPENJPA-1762
> URL: https://issues.apache.org/jira/browse/OPENJPA-1762
> Project: OpenJPA
> Issue Type: Bug
> Components: jdbc
> Affects Versions: 2.0.1, 2.1.0
> Environment: Derby and DB2
> Reporter: Rick Curtis
> Assignee: Fay Wang
> Attachments: OPENJPA-1726-1.patch, OPENJPA-1762.PATCH
>
>
> I have a simple failing unit test that exercises a small portion of the
> javax.persistence.lock.scope=Extended property. The failing scenario is as
> follows:
> ManyToMany relationship between A(owner) and B.
> Em1 - Find A, no lock
> Em1 - Refresh A, PESSIMISTIC_FORCE_INCREMENT and
> javax.persistence.lock.scope=PessimisticLockScope.EXTENDED -- this SHOULD
> lock the join table for A_B
> Em2 - Find, lock B. Remove B. should block while trying to remove from Join
> table.
> I will post the unit test which demonstrates the problem shortly.
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