Yes Howard.. for now we just need to make sure the examples are working. Anil... are you sure this won't affect performance? So, you will probably check for System.getSecurityManager()==null, what means we would behave the same without creating an extra object when System.getSecurityManager()==null. I have done some tests in the past, and when we do too many new PriviledgeBlocks, that really affects performance due to Garbage Collection on those objects. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4190727#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...