generics: getRoles now returns Set<Role>
generics: getRoles now returns Set<Role>

jrfinc/jPOS-EE,jpos/jPOS-EE,barspi/jPOS-EE,jrfinc/jPOS-EE,jpos/jPOS-EE,barspi/jPOS-EE,jpos/jPOS-EE,phamthaithinh/jposee,jrfinc/jPOS-EE,barspi/jPOS-EE