JDeveloper EJB3.0 problems

Question

(Cross-posting this from the EJB forum in the hopes someone with more JDev experience can offer some insight)
I'm trying to use EJBs for the first time, and have run into a problem initialising an EntityManagerFactory. The examples I've been looking at use something like:
EntityManagerFactory emf = Persistence.createEntityManagerFactory("<persistence unit name>");
However, this gives me a compilation error. In my installation, the only valid forms of javax.persistence.Persistence.createEntityManager take no parameters, and a Map parameter, respectively.
I can't find any documentation on these forms of procedure!
I'm using JDeveloper 10.1.3.0.4, EJB 3.0, J2SE 1.5.0_05. The version of the Persistence class my project is using is in <jdev_home>\j2ee\home\lib\persistence.jar
Any help will be appreciated.

Answer 1

I assume you mean JDeveloper 10.1.3.4? (I don't think there ever was such a version as 10.1.3.0.4)
The version of the Persistence class my project is using is in <jdev_home>\j2ee\home\lib\persistence.jar(assuming you're using 10.1.3.4) - you are not using that version of persistence.jar - I had a look in there and found:
public static EntityManagerFactory createEntityManagerFactory(String paramString)
and
public static EntityManagerFactory createEntityManagerFactory(String paramString, Map paramMap)
Perhaps you have some other version of persistence.jar in the libraries you are using
John