Each EJB 3.0 tutorial comes with JUnit unit tests that can be run Eclipse, IntelliJ, NetBeans, Maven, Ant or any IDE or build system without special plugins using OpenEJB as an embedded EJB container. The easiest way to run a tutorial in your IDE is to use maven (mvn eclipse:eclipse or mvn idea:idea) to generate project descriptors.
If there is a particular example that you do not see here please feel free to ask, the odds are good that someone will create it for you.
All the examples show source code, but some are better documented than others. If you need a little more help understanding an example then please drop us a line or visit us on IRC freenode.net #openejb
All edits are reviewed before going live, so feel free to do much more than fix typos or links. If you see a page that could benefit from an entire rewrite, we'd be thrilled to review it. Don't be surprised if we like it so much we ask you for help with other pages :)NOTICE: unless indicated otherwise on the pages in question, all editable content available from apache.org is presumed to be licensed under the Apache License (AL) version 2.0 and hence all submissions to apache.org treated as formal Contributions under the license terms.