Instead of using RecoveryEnvironmentBean to activate the new graceful shutdown of Narayana (introduce with JBTM-3894), a new method to overload PeriodicRecovery.suspendScan should be introduced. I thought to add this enhancement to Narayana while I was integrating JBTM-3894 in our main integrating party: WildFly. In fact, using RecoveryEnvironmentBean to activate Narayana's graceful shutdown means that WildFly's users have to restart the application server if they want to change its shutdown behaviour. On the other hand, by overloading suspendScan, users will be able to change the graceful shutdown of WildFly at any moment they want.