I’m not sure if you’re running into a bug of the Eclipselink 2.0 or something
as it’s really an old version from December 2009.

Regarding the Locationhistory prefix, I guess the Locationhistory name
prefix is given by yourself, correct?

   NamedQuery(name = "Locationhistory.findUnprocessed", query = ...);

Can you maybe try to embedd the newest Eclipselink version into your
WEB-INF/lib folder to see if you can reproduce the problem, or maybe try
another provider, e.g. the Camel JPA component itself makes use of Apache
OpenJPA. So maybe try to put the newest OpenJPA jar:

http://search.maven.org/remotecontent?filepath=org/apache/openjpa/openjpa/2.3.0/openjpa-2.3.0.jar

Into your WEB-INF/lib folder and then inside persistence.xml ask for this
provider:

  
<provider>org.apache.openjpa.persistence.PersistenceProviderImpl</provider>

Can you also provide the full stacktrace of the exception you get?

Babak

robbob wrote
> Hi Babak,
> 
> I am using Eclipselink 2.0 and running inside of a web application on
> glassfish.  I tried remove the Locationhistory prefix and the query does
> not run at all, whereas when it runs with the prefix, it executes over and
> over again.
> 
> Thanks,
> -Rob
> 
> 
> From: Babak Vahdat [via Camel] [mailto:

> ml-node+s465427n5752291h54@.nabble

> ]
> Sent: Saturday, June 14, 2014 12:08 AM
> To: Rob Terpilowski
> Subject: Re: JPA entityType always Null
> 
> Hi
> 
> What is your JPA provider and which version of it (Eclipselink, OpenJPA or
> Hibernate-EntityManager, etc.) and how do you run your app? Standalone,
> inside a web-app or?
> Can you also try with the option value consumer.namedQuery=findUnprocessed
> without the Locationhistory prefix?
> 
> Babak
> robbob wrote
> I've create a JPA consumer using the following URI:
> jpa://com.lynden.peoplenet.Locationhistory?consumer.namedQuery=Locationhistory.findUnprocessed&consumeDelete=false&persistenceUnit=PN-SQL-Local
> 
> I have also added an @Consumed method to the
> com.lynden.peoplenet.Locationhistory class.  The process reads out the
> records from the database with no problem, however the @Consumed method is
> never called on the Locationhistory class.  Upon debugging further, it
> looks like the entityType variable in the JpaEndpoint object is set to
> null for some reason, and so the JpaConsumer class can't find the entity
> class to invoke its Consumed method.  I've also tried adding the
> entityType property to the URI:
> 
> 
> jpa://com.lynden.peoplenet.Locationhistory?consumer.namedQuery=Locationhistory.findUnprocessed&consumeDelete=false&persistenceUnit=PN-SQL-Local&entityType=com.lynden.peoplenet.Locationhistory
> 
> But I get the following error:
> 
> Failed to resolve endpoint:
> jpa://com.lynden.peoplenet.Locationhistory?consumeDelete=false&consumer.namedQuery=Locationhistory.findUnprocessed&entityType=com.lynden.peoplenet.Locationhistory&persistenceUnit=PN-SQL-Local
> due to: Could not find a suitable setter for property: entityType as there
> isn't a setter method with same type: java.lang.String nor type conversion
> possible: No type converter available to convert from type:
> java.lang.String to the required type: java.lang.Class with value
> com.lynden.peoplenet.Locationhistory.
> 
> I'm using camel-core and camel-jpa 2.13.1
> 
> Any ideas of what I should be looking for?
> 
> thanks,
> -Rob
> 
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