Here is my current thoughts for the EJB sampler. I haven't written EJB's in a long time, so I am a bit rusty. Some of it may not make sense, but hopefully it will provide food for thought.
1. sampler to test statefull session 2. sampler to test stateless session
Both samplers will use EJBLocal and simulate the process of a request getting data from the middle-tier. I haven't worked out the exact details yet, but I was thinking there should be a ejbmanager, similar to authmanager. this way, the ejblocal is reused. Doing a context lookup every single time is a bit silly, so keeping the ejblocal and reusing makes much more sense.