Thanks bill for the response, but in the distribution of Jboss ejb3 embedded there is a conf directory with config files and one files with the name ejb3-interceptors-aop.xml and in the file exist some domains with names Base Stateful Bean, Stateful Bean extends the Base, JACC Stateful Bean. Because I use JBoss ejb3 embedded and Standone Class to test how Interceptors works and do not know which config files to use to limite the number of active Bean instances. thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3977352#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...