JPA 2.0 Implementations comparison : Hibernate 3.5 vs EclipseLink 2 vs OpenJPA 2

Posted by peperg on Stack Overflow See other posts from Stack Overflow or by peperg
Published on 2010-06-14T06:23:55Z Indexed on 2010/06/14 8:02 UTC
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hibernate

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jpa2.0

What's your choice? Do You have any suggestions and experience?

I'm developing an application with Hibernate 3.5 and Spring 3.0

Pros:

Good documentation
Easy configuration and helpful logs
Popularity - wide community
Some extensions to JPA
Some additional Tools - JBoss Tools for Eclipse, hbm2ddl, generating static metamodel etc...

Cons:

Bugs! (Sequences, collections etc...)
Lots of reatures are doubled with "pure" Hibernate. There's a mess in legacy Hibernate and JPA annotations.

I'm considering to switch to EclipseLink. What do You think ?

Edit:

I've tried EclipseLink and have very bad experiences. It seems like EclipseLink needs LoadTimeWeaver and likes to run on OSGi platform rather than simple Jetty or Tomcat environment. I just don't have time for all this configuration stuff.

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