Re: [eclipselink-users] No Persistence provider for EntityManager - Erro

[Shaun Smith <shaun.smith@xxxxxxxxxx>]

Hi Alex,

   One way this exception can occur is when you have persistence.jar on your classpath but not the JPA provider jar.  Make sure you have both persistence.jar and eclipselink.jar on your classpath.

       Shaun


Alex_S wrote:

Hi everybody,


I have tried to switch my application from Toplink Essentials to
Eclipselink, but it currently doesn't work.

After replacing the jar library and doing the necessary changes in
persistence.xml and source code I always get an

Exception in thread "main" javax.persistence.PersistenceException: No
Persistence provider for EntityManager named default
	at
javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:89)
	at com.emd.testpersistence.MyEntityManager.main(MyEntityManager.java:89)


Thx for help,
Alex
  

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Shaun Smith | Principal Product Manager, TopLink | +1.905.502.3094
Oracle Fusion Middleware
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Mississauga, Ontario, Canada L5R 3P4