Null pointer exception for entityManager

punitbangade Feb 8, 2016 2:42 AM

I am getting error as :

Caused by: java.lang.IllegalArgumentException: JBAS011470: Persistence unitName was not specified and there are 15 persistence unit definitions in application deployment deployment xyz.war". Either change the application deployment to have only one persistence unit definition or specify the unitName for each reference to a persistence unit.

For workaround i have commented following lines in my standalone.xml

</subsystem>

But my application got deployed without exception.And now i am getting null pointer exception for EntityManager.

Can someone help me resolving the issue?

Thanks

1. Re: Null pointer exception for entityManager

wdfink Feb 9, 2016 5:33 PM (in response to punitbangade)

How your deployed application look like?
Could you show the Entity and the persistence.xml and what you try to achieve?
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2. Re: Null pointer exception for entityManager

anmk28 Feb 9, 2016 10:00 PM (in response to wdfink)

Try to add the <property name="wildfly.jpa.default-unit" value="true" /> persistence.xml and commenting out the following from standalone.xml
<subsystem xmlns="urn:jboss:domain:jpa:1.1">
<jpa default-datasource=""/>
</subsystem>

It my be help

Thanks
Mahesh
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