For example: | 13:06:18,406 ERROR [AbstractKernelController] Error installing to Create: name=jboss.management.local:j2eeType=J2EEDomain,name=Manager state=Configured mode=Manual requiredState=Create | java.lang.NoClassDefFoundError: org/jboss/management/j2ee/statistics/StatisticsProvider | at java.lang.ClassLoader.defineClass1(Native Method) | at java.lang.ClassLoader.defineClass(ClassLoader.java:620) | at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) | at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) | at java.net.URLClassLoader.access$100(URLClassLoader.java:56) | at java.net.URLClassLoader$1.run(URLClassLoader.java:195) | at java.security.AccessController.doPrivileged(Native Method) | at java.net.URLClassLoader.findClass(URLClassLoader.java:188) | at org.jboss.mx.loading.RepositoryClassLoader.findClassLocally(RepositoryClassLoader.java:566) | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3980458#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...