[8.x] [WFLY-3256] IronJacamar 1.1.8.Final

Contains a workaround for WFLY-3619
Actually because of where this is you don't need anything at all, just call System.setProperty(). 

Because this code will never be executed with unprivilidged (i.e. user code) on the stack you don't need to use doPrivileged.