Hello, as far as I know in J2EE its "strictly fobidden" to use multithreading or e.g snchronization in EJBs itself. I think the reason is that this disturbs the container, which manage all such tasks by itself.
But what about POJO EJB-Helper classes, whose methods are used in the EJBs. Is multithreading&synchronisation allowed in such classes???
Are there other restriction for such POJO classes???