When and in which scenario does this exception gets thrown in a TimerService? I can see that the interface's mathod all throws an EJBException or IllegalStateException, but when does this IllegalStateException gets thrown?
SCJP 1.4, SCWCD 1.4 - Hints for you, Certified Scrum Master
Did a rm -R / to find out that I lost my entire Linux installation!
If a session bean instance attempts to invoke a method of the Timer interface in dependency injection
methods (e.g., setSessionContext) or PostConstruct, Pre-
methods in BMT or CMT, the IllegalStateException is thrown.