BaseContext in servlet

[Kuhns, John]

I am attempting to set a reference to a pojo containing some user info for use 
during updates/inserts. On reading the documentation early on, 3.0RC1 or so, I 
believed I could use setUserProperty and the context would be reused within a 
given session. However it appears that BaseContext.getThreadObjectContext() 
does not return the same context ever. 

In my web.xml I have:
        <filter>
                <filter-name>CayenneFilter</filter-name>
                
<filter-class>org.apache.cayenne.conf.WebApplicationContextFilter</filter-class>
        </filter>
        <filter-mapping>
                <filter-name>CayenneFilter</filter-name>
                <servlet-name>/*</servlet-name>
        </filter-mapping>

I then implemented HttpSessionAttributeListener in my class and used the 
following code within it:

        public void attributeAdded(HttpSessionBindingEvent arg0) {
                ObjectContext ctx = null;
                try{
                        ctx = BaseContext.getThreadObjectContext();
                }catch(Exception e){}
                
                if(ctx != null){
                        BaseContext.bindThreadObjectContext(ctx);
                        ctx.setUserProperty("myData", this);
                }
        }

The code gets hit and the property is set, but every subsequent call to 
BaseContext.getThreadObjectContext().getUserProperty("myData") returns null. If 
I explicitly set the user property with every request, all works fine. Am I 
missing something?

John Kuhns