Unknown entity class error message even though the entity is marked with @Entity annotation

Question

I am building REST web app using Netbean6.9.1 and JPA EclipseLink.

The issue I\'m facing is even though my entity class MasatoTable is marked with Entity annotation, I g

Answer 1

How are you creating your EntityManager/Factory, is it managed or non-managed?

If it is not managed, then I believe that EclipseLink will not be notified in any way of a redeployment, so will still have the old EntityManagerFactory cached as it is never closed. Can you ensure that you close the EntityManagerFactory after the hot deploy?

You can make the persistence unit a managed persistence unit, that may resolve the issue.

Either way, please log a bug for this with details in EclipseLink and Glassfish, as this issue should be tracked.

I think this may be the bug, https://bugs.eclipse.org/bugs/show_bug.cgi?id=326552

Please vote for this bug, and include your information in it.

Answer 2

The solution here is to use JPA 1.0 if 2.0 is not required.

Answer 3

Today i faced the same proble, but i corrected in persistence.xml

1. Please check with entity class name and package are correctly defined in persistence.xml.