Configure Asynchronous HTTP Request Processing with JBossWeb and JBoss AS 5.0
32.3. JBossWeb, JBoss AS 5.0.x Support The JBossWeb container shipped with JBoss AS 5.0.x and higher requires you to install the JBoss Native plugin to enable asynchronous HTTP processing. Please see the JBoss Web documentation on how to do this. Your deployed Resteasy applications must also use a different Resteasy servlet, org.jboss.resteasy.plugins.server.servlet.JBossWebDispatcherServlet. This class is available within the async-http-jbossweb-xxx.jar or within the Maven repository under the async-http-jbossweb artifact id. web.xml: Resteasy org.jboss.resteasy.plugins.server.servlet.JBossWebDispatcherServlet