Which flush-strategies available for resource adapter in EAP 6 ?

Issue

• Which flush-strategies available for resource adapter in EAP 6 ?

• We are trying to set the flush-strategy of a connection-definitions (resource-adapter) to value InvalidIdleConnections. However it says "Invalid value InvalidIdleConnections for flush-strategy; valid values [null, FailingConnectionOnly, IdleConnections, EntirePool]"