Hello,
When persisting an entry, you may not put a value in your PK if it is a generated key!
Likely you have, somewhere, something like this:
@Entity
public class Member {
....
@ID
@GeneratedValue(...)
private ... userId;
And, in the populating method:
Member member = new Member();
member.setUserId(fromXmlMember.getUserId()); <- do not do this!
...
Em.persist(member);
Hope this helps,

John
----
Who is General Failure, and why is he reading my hard disk?
> -----Ursprüngliche Nachricht-----
> Von: schamarthi [mailto:srinivas.chamarthi@gmail.com]
> Gesendet: Dienstag, 22. Mai 2012 00:40
> An: users@openjpa.apache.org
> Betreff: Exception during the unit tests in Eclipse(including maven)
>
> I am populating data from xml and persisting entities using
> entitymanager during my application startup and everything is
> fine. But however I am trying to run the junits with setup
> containing the script to load the test data by persisting
> them using entitymanager, I am seeing the following exception...
>
> PS: I haven't set any userId value in my unit tests.
>
> not sure what does this mean.... am not able to get away with
> this exception. appreciate any quick help.
>
>
> Primary key field com.all4u.server.domain.Member.userId of
> com.all4u.server.domain.Member@187e184 has non-default value.
> The instance life cycle is in PNewState state and hence an
> existing non-default value for the identity field is not
> permitted. You either need to remove the @GeneratedValue
> annotation or modify the code to remove the initializer
> processing.; nested exception is
> <openjpa-2.2.0-r422266:1244990 nonfatal user error>
> org.apache.openjpa.persistence.InvalidStateException: Primary
> key field com.all4u.server.domain.Member.userId of
> com.all4u.server.domain.Member@187e184 has non-default value.
> The instance life cycle is in PNewState state and hence an
> existing non-default value for the identity field is not
> permitted. You either need to remove the @GeneratedValue
> annotation or modify the code to remove the initializer processing.
>
> --
> View this message in context:
> http://openjpa.208410.n2.nabble.com/Exception-during-the-unit-
> tests-in-Eclipse-including-maven-tp7570130.html
> Sent from the OpenJPA Users mailing list archive at Nabble.com.
>
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