I am trying to do a stress test on JBoss 3.0.0 with Apache SOAP 2.3.1 and sending a BigMessage Object which including 500 String fields with 80 characters each. I use this BigMessage bean using tag in JSP and the scope = request. Then we use JMeter to create 10 threads and hit the server every 5 seconds. We found that the memory keeps increasing and finally the server throws OutOfMemoryError. Then we changed to just import the bean and instantiate in the JSP page. It worked fine. I wonder if anyone had this problem?