从JBoss上运行的JSF应用程序调用Microsoft EWS

I'm running JBoss 4.2.3, Java 1.5, and Ubuntu. Before you tell me to post on the JBossWS forum, I already have and there is not a lot of activity over there. I am trying to call a Microsoft Exchange web service end point from a JSF web application. I have written other web service end points and have successfully built clients into my web application. I also use the same code for this client in a stand alone Java application to call the exchange web service and everything works great, but for some reason I am getting this exception in my web app:I'm running JBoss 4.2.3, Java 1.5, and Ubuntu.