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https://issues.apache.org/jira/browse/OPENJPA-2312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13535210#comment-13535210
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Kevin Sutter commented on OPENJPA-2312:
---------------------------------------
MySQL happens to be one of the databases that the default value is changed to
"false" for supportsMultipleNontransactionalResultSets. If you want to run
with this for H2, you could easily update your persistence.xml with the
following property to change this setting:
<property name="openjpa.jdbc.DBDictionary"
value="h2(SupportsMultipleNontransactionalResultSets=false)"/>
Although it looks like this will get you around your immediate problem, I think
you should still look at whether you are trying to use the managed connection
factory mode or not. If you are not, then maybe you do want to run with this
property set to "false". Good luck.
> H2 is forced to autoCommit; breaks transactions
> -----------------------------------------------
>
> Key: OPENJPA-2312
> URL: https://issues.apache.org/jira/browse/OPENJPA-2312
> Project: OpenJPA
> Issue Type: Bug
> Affects Versions: 2.0.0
> Reporter: Gustavo Lopes
> Attachments: details.txt
>
>
> DataSourceFactory::installDBDictionary() sets autocommit to TRUE on the
> ConfiguringConnectionDecorator because
> supportsMultipleNontransactionalResultSets is true.
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