Lifecycle, ServiceLifeCycle methods never called?

[Jason Wells]

Hi,

I have an Axis2 1.4.1 service in Tomcat 6 deployed at transport  
session scope. It implements Lifecycle and ServiceLifeCycle. When I  
hit the service for the first time, I can see init() gets called.  
However, neither startUp(), shutDown() nor destroy() ever get called,  
not even when I let the session time out or shut down Tomcat. What am  
I missing?

Thanks,
Jason