Hi there, cp ../server/all/deployers/jboss-aop-jboss5.deployer/pluggable-instrumentor.jar . Then modify run.sh (or run.bat if you're on Windows) # Setup JBoss specific properties JAVA_OPTS="-Dprogram.name=$PROGNAME $JAVA_OPTS" #Add this line JAVA_OPTS="-javaagent:pluggable-instrumentor.jar $JAVA_OPTS" The work should be done against: https://svn.jboss.org/repos/jbossas/projects/aop/branches/Branch_2_1/ and https://svn.jboss.org/repos/jbossas/projects/aop/trunk I see I answered the wrong thing for your previous post with the build failure, thinking it was to do with JRockit. The builds should work out of the box for the mentioned branches, if you have any problems building please post them here. Ask as much as you like, I don't mind helping you helping us :-) View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4249405#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...