About Question enthuware.oce-ejbd.v6.2.363 :

[jhonsoda]

Hi,

I do not understand why the second option is invalid "The container may call different business methods on the same bean instance from different threads simultaneously.".

the explanation of the first question says "A container may use the same instance for all invocation. The only guarantee is that the container will not invoke a method on the same instance from multiple threads simultaneously."

[admin]

Well, the reason that you quoted from the explanation does explain why the option is invalid. So I am not sure what is your doubt.
-Paul.