Hi, I whould like to know some opinions about OpenEJB: we are considering to use it on a new project, but really didn't found many opinions about it.
So, here is my question: how about it? Does it perform well? Is it stable enough for a production environment?
We switched to OpenEJB (deployed embedded in our app on Tomcat). Performance tests showed better or not worse results processing our transactions compared to JBoss (transactions include data access, JMS, and servlets). We use ActiveMQ within OpenEJB for JMS. There are no stability problems as of yet - we are still in staging (pre-production) environment though. The documentation is definitely lacking, but not as poor as other embedded choices. Overall, we consider this as a good choice if you run on Tomcat. Deploying it on other application servers turned out to be much more difficult (JBoss, Weblogic, Websphere) but there are not many reasons for this usually (we had few but dropped this after several attempts basically failed).
And as in all open source products: expect lack of support (documentation, troubleshooting, bugs, etc.) to be compensated by free access to sources.