Hi!
> I use Stateful Session bean for keeping information for each user. The
> Session bean is stored to the HttpSession. If servlets are running in
> one frame all is OK. But if I let run servelts in 3 frames the "No
> concurrent calls on stateful beans Exception" is called.
This is as specified by the EJB 1.1 specification, i.e. normal.
> I tested the same bean in simple thread application( 20 threads used the
> same bean ) and no exception was thrown. Therefore I guess the problem
> is in Tomcat.
There is most likely a bug in your test application. It should fail. Are you
sure your threads are accessing the same stateful session instance ?
/Rickard
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