After installing jboss mail server M5 sucessfully on 4.0.5 AS, I got the following errors when I started the AS: 2007-04-08 16:38:36,453 DEBUG [org.jboss.deployment.scanner.URLDeploymentScanner] Failed to deploy: org.jboss.deployment.scanner.URLDeploymentScanner$DeployedURL@7f0312bd{ url=file:/C:/jboss4.0.5/server/default/deploy/mail.ear/, deployedLastModified=0 } org.jboss.deployment.DeploymentException: - nested throwable: (java.lang.reflect.UndeclaredThrowableException) at org.jboss.system.ServiceConfigurator.install(ServiceConfigurator.java:196) ...... ...... Caused by: java.lang.reflect.UndeclaredThrowableException at org.jboss.system.ServiceCreator.install(ServiceCreator.java:236) at org.jboss.system.ServiceConfigurator.internalInstall(ServiceConfigurator.java:449) at org.jboss.system.ServiceConfigurator.install(ServiceConfigurator.java:171) ... 80 more Caused by: java.lang.NoClassDefFoundError: org/jboss/aop/JoinPoint at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2357) at java.lang.Class.getConstructor0(Class.java:2671) at java.lang.Class.getConstructor(Class.java:1629) at org.jboss.mx.server.MBeanServerImpl.instantiate(MBeanServerImpl.java:1232) at org.jboss.mx.server.MBeanServerImpl.instantiate(MBeanServerImpl.java:286) at org.jboss.mx.server.MBeanServerImpl.createMBean(MBeanServerImpl.java:344) at org.jboss.system.ServiceCreator.install(ServiceCreator.java:157) When I searched the jboss-aop.jar, there is no such class "org/jboss/aop/JoinPoint", JoinPoint class is at "org/jboss/aop/JoinPoint/JoinPoint.class". Is there a version issue for mail server? jboss-aop.jar version problem? can sb help? Thanx, View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4035627#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...