Ok, I followed the advice from the last couple of posters, and adding ALL of the jars from the jbossall-client.jar's Manifest to my classpath FINALLY made my test work! I had jbossall-client.jar in my classpath originally, along with (what I had thought) were all the jars I would need (basically, the equivalent versions of jars from earlier JBoss versions), leaving out jars like the IIOP jar, etc, that I thought I didn't neeed. Turns out I was wrong...I couldn't get my test to work until I added _every_ jar from the Manifest to my classpath. Once I did that, my test worked! Thanks to everyone for your help with this (very frustrating) problem. I sincerely appreciate everyone's assistance. Tim View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4186763#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...