The WebLogic <delay-updates-until-end-of-tx> configuration element, which defaults to true, is used for performance reasons to delay updates to the persistent store of all beans until the end of the transaction. When set to false, updates are sent to the database after each method invocation, but are not committed until the end of the transaction. This allows other processes to access the persisted data while the transaction is waiting to be completed. In JBoss EAP 6, the same behavior can be achieved by specifying the <sync-on-commit-only> in the jbosscmp-jdbc.xml file.

An example: weblogic-ejb-jar.xml:

<entity-descriptor>
<persistence>
...
...
<delay-updates-until-end-of-tx>false</delay-updates-until-end-of-tx>
</persistence>
</entity-descriptor>
To fix:

Remove element from weblogic-ejb-jar.xml and add to jbosscmp-jdbc.xml:

<jbosscmp-jdbc>
...
<entity>
...
<!-- elements removed for readability -->
<sync-on-commit-only>false</sync-on-commit-only>
</entity>
</jbosscmp-jdbc>