I've installed jboss-aop-jdk50.deployer on JBoss4.0.5GA, wrote below aspect public class LoggerAspect { private static Logger log = Logger.getLogger(LoggerAspect.class); public Object logInvocation (Invocation invocation) throws Throwable { if (invocation instanceof MethodInvocation){ MethodInvocation method = (MethodInvocation) invocation; log.info("Method: " + method.getActualMethod() + " invoked."); System.out.println("Method: " + method.getActualMethod() + " invoked."); } if (invocation instanceof FieldInvocation){ FieldInvocation field = (FieldInvocation) invocation; log.info("Field: " + field.getField() + " invoked."); System.out.println("Field: " + field.getField() + " invoked."); } if (invocation instanceof ConstructorInvocation){ ConstructorInvocation constructor = (ConstructorInvocation) invocation; log.info("Constructor: " + constructor.getConstructor() + " invoked."); System.out.println("Constructor: " + constructor.getConstructor() + " invoked."); } return invocation.invokeNext(); } } then configure the binding in a jboss-aop.xml as below: <?xml version="1.0" encoding="UTF-8"?> and put the file in the META-INF directory. I then included the aspect and the xml in the same jar file as the class I'm trying to cross cut which is a message bean, but I can't see anything happening. What am I doing wrong? Thanks W View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4034002#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...