That's the message that JBoss / Tomcat gives me as I try to run a jsp that accesses 2 entity beans . I know it's not a "best practice" but after a lot of thought i decided this is best for what i'm curently trying to do .

I initially thought the error was due to the fact that i'm using JSP's but after a few google searches i saw some guys writting session ejb's having the same problems .

here is a bit of code :

...
Object ref = jndiContext.lookup("HolderObjectLocalHome");
 HolderObjectLocalHome hohome = (HolderObjectLocalHome)PortableRemoteObject.narrow(ref , HolderObjectLocalHome.class);
 Collection hoz = hohome.findAll(); // code works here

 Iterator i = hoz .iterator(); // code works here

 while ( i.hasNext() ) {
 HolderObjectLocal hol = (HolderObjectLocal)i.next();

 Collection objz = hol.getObjects(); // code works here
 Iterator ii = objz.iterator(); // code stops working here
...