Unable to do new InitialContext() inside of a notification handler. Testing shows that the Thread.currentThread.getContextClassLoader is not set correctly. See attached example. Note the example works fine in EAP 4.3 (with the mbean annotation packages changed)

I have created a simple Annotated MBean that prints some classloader info when it starts and then registers itself to get notifications for jboss.system:type=Server. When it gets a notification, I have it print the classloader info again and the Thread CL info is not the same. Then I do a new InitialContext and it fails to find "org.jnp.interfaces.NamingContextFactory".

When the MBean starts:

Thread.currentThread().getContextClassLoader()
BaseClassLoader@ef22c9

{vfszip:/NotBackedUp/bmaxwell/server/jboss-eap-5.0.1-debug/server/active/deploy/mbean-notification-handler.jar/}

Thread.currentThread().getContextClassLoader(): vfsfile:/NotBackedUp/bmaxwell/server/jboss-eap-5.0.1-debug/server/active/conf/jndi.properties
(no exception doing Thread.currentThread().getContextClassLoader().loadClass("org.jnp.interfaces.NamingContextFactory")

When the notification is fired and the callback is invoked on the MBean:

Thread.currentThread().getContextClassLoader()
org.jboss.bootstrap.NoAnnotationURLClassLoader@1d99a4d
Thread.currentThread().getContextClassLoader(): null
16:46:44,830 ERROR [STDERR] java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFactory
16:46:44,830 ERROR [STDERR] at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
16:46:44,830 ERROR [STDERR] at java.security.AccessController.doPrivileged(Native Method)
16:46:44,830 ERROR [STDERR] at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
16:46:44,830 ERROR [STDERR] at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
16:46:44,830 ERROR [STDERR] at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
16:46:44,830 ERROR [STDERR] at com.jboss.examples.mbean.NotificationHandler.printCLs(NotificationHandler.java:173)
16:46:44,831 ERROR [STDERR] at com.jboss.examples.mbean.NotificationHandler.onJBossStarted(NotificationHandler.java:183)
16:46:44,831 ERROR [STDERR] at com.jboss.examples.mbean.NotificationHandler.handleNotification(NotificationHandler.java:145)
16:46:44,831 ERROR [STDERR] at sun.reflect.GeneratedMethodAccessor196.invoke(Unknown Source)
16:46:44,831 ERROR [STDERR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
16:46:44,831 ERROR [STDERR] at java.lang.reflect.Method.invoke(Method.java:597)
16:46:44,831 ERROR [STDERR] at org.jboss.mx.notification.NotificationListenerProxy.invoke(NotificationListenerProxy.java:153)
16:46:44,831 ERROR [STDERR] at $Proxy137.handleNotification(Unknown Source)
16:46:44,831 ERROR [STDERR] at javax.management.NotificationBroadcasterSupport.handleNotification(NotificationBroadcasterSupport.java:257)
16:46:44,831 ERROR [STDERR] at javax.management.NotificationBroadcasterSupport$SendNotifJob.run(NotificationBroadcasterSupport.java:322)
16:46:44,831 ERROR [STDERR] at javax.management.NotificationBroadcasterSupport$1.execute(NotificationBroadcasterSupport.java:307)
16:46:44,831 ERROR [STDERR] at javax.management.NotificationBroadcasterSupport.sendNotification(NotificationBroadcasterSupport.java:229)
16:46:44,832 ERROR [STDERR] at org.jboss.bootstrap.AbstractServerImpl.start(AbstractServerImpl.java:484)
16:46:44,832 ERROR [STDERR] at org.jboss.Main.boot(Main.java:221)
16:46:44,832 ERROR [STDERR] at org.jboss.Main$1.run(Main.java:556)
16:46:44,832 ERROR [STDERR] at java.lang.Thread.run(Thread.java:619)

Then it hits the code where I do new InitialContext().lookup("java:DefaultDS");

16:46:44,834 ERROR [NotificationHandler] Exception trying to start service polling: javax.naming.NoInitialContextException: Cannot instantiate class: org.jnp.interfaces.NamingContextFactory [Root exception is java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFactory]
javax.naming.NoInitialContextException: Cannot instantiate class: org.jnp.interfaces.NamingContextFactory [Root exception is java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFactory]
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:657)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:288)
at javax.naming.InitialContext.init(InitialContext.java:223)
at javax.naming.InitialContext.<init>(InitialContext.java:175)
at com.jboss.examples.mbean.NotificationHandler.onJBossStarted(NotificationHandler.java:185)
at com.jboss.examples.mbean.NotificationHandler.handleNotification(NotificationHandler.java:145)
at sun.reflect.GeneratedMethodAccessor196.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.mx.notification.NotificationListenerProxy.invoke(NotificationListenerProxy.java:153)
at $Proxy137.handleNotification(Unknown Source)
at javax.management.NotificationBroadcasterSupport.handleNotification(NotificationBroadcasterSupport.java:257)
at javax.management.NotificationBroadcasterSupport$SendNotifJob.run(NotificationBroadcasterSupport.java:322)
at javax.management.NotificationBroadcasterSupport$1.execute(NotificationBroadcasterSupport.java:307)
at javax.management.NotificationBroadcasterSupport.sendNotification(NotificationBroadcasterSupport.java:229)
at org.jboss.bootstrap.AbstractServerImpl.start(AbstractServerImpl.java:484)
at org.jboss.Main.boot(Main.java:221)
at org.jboss.Main$1.run(Main.java:556)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFactory
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.java:46)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:654)
... 18 more