Just to clarify: The test I am running is not a test that I wrote. I am running the test org.jboss.test.jbossmessaging.test.JBossJMSUnitTestCase that comes with the JBoss Application Server source code. To run the test, I run the provided ant script which automatically sets up the classpath for the JUnit client. I looked at the classpath being passed to JUnit and it looked correct as far as I could tell. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4220733#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...