JBoss Messaging stalls startup synchronizing on an aop AspectManager

Issue

• Our JBoss start never completes and is perpetually stalled. Thread dumps show the main thread hanging in ServerConnectionFactoryEndpoint.createConnectionDelegateInternal() along with others, for example:

"main" prio=10 tid=0x00007f2e340e1800 nid=0x5199 waiting for monitor entry [0x00007f2e30bf6000]
   java.lang.Thread.State: BLOCKED (on object monitor)
    at org.jboss.aop.AspectManager.getAdvisor(AspectManager.java:728)
    - waiting to lock <0x00000000a6dc7f78> (a org.jboss.aop.AspectManager)
    at org.jboss.jms.client.delegate.ClientConnectionDelegate.<clinit>(ClientConnectionDelegate.java)
    at org.jboss.jms.server.endpoint.ServerConnectionFactoryEndpoint.createConnectionDelegateInternal(ServerConnectionFactoryEndpoint.java:296)
    - locked <0x00000000a52dc1f8> (a org.jboss.aop.asintegration.jboss5.ScopedVFSClassLoaderDomain)
    at org.jboss.jms.server.endpoint.ServerConnectionFactoryEndpoint.createConnectionDelegate(ServerConnectionFactoryEndpoint.java:170
...

"WorkManager(2)-1" daemon prio=10 tid=0x00007f2dc90db800 nid=0x52a4 in Object.wait() [0x00007f2e08b56000]
   java.lang.Thread.State: RUNNABLE
    at org.jboss.jms.server.endpoint.ServerConnectionFactoryEndpoint.createConnectionDelegateInternal(ServerConnectionFactoryEndpoint.java:296)
    - locked <0x00000000a6dc7f78> (a org.jboss.aop.AspectManager)
    at org.jboss.jms.server.endpoint.ServerConnectionFactoryEndpoint.createConnectionDelegate(ServerConnectionFactoryEndpoint.java:170)
...