replaced direct class in instance creation

[dmishh]

return new EntityManager() -> return new static() on line 945
made code more reusable

[doctrinebot]

Hello,

thank you for positing this Pull Request. I have automatically opened an issue on our Jira Bug Tracker for you with the details of this Pull-Request. See the Link:

http://doctrine-project.org/jira/browse/DDC-2389

[Ocramius]

@dmishh the EntityManager is not meant to be extended. Use the Doctrine\Common\Persistence\ObjectManager interface and composition instead.

[DavertMik]

why it's not final then?

[Ocramius]

@DavertMik can't change it now because of BC compatibility. I agree it should be (especially to avoid this kind of PR that always pops up)

[guilhermeblanco]

@DavertMik It can't be final because we require to Mock it for testing purposes.