"flavia.rainone(a)jboss.com" wrote : Tim, I'm hoping that your tests will show no significant impact on performance. The security priviledged block is going to execute only the first time the joinpoint is reached Actually I'm mistaken. It will execute only the first time the joinpoint is reached on a per instance basis, given your aspects have a PER_INSTANCE scope. Now, the performance impact depends on how many instances you have running and on the structure of your code. The jar is attached: https://jira.jboss.org/jira/browse/JBAOP-675 Let me know what is the outcome of your performance tests. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4190886#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...