I have a web application to which I want to limit the number of concurrent requests. For this. I did the MaximumPoolSize and MaximumQueueSize configurations and have set the BlockingMode to "abort" in jboss-service.xml. When the number of requests go beyond this value, Jboss does not reject these requests and the requests are still getting processed. I somewhere read that jboss-webservice.xml configuration will only work for the services which are acces using jndi tree. My application is not accessed using jndi tree.