code: protected void addAllUsersToRole(Set<String> users, String role) {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) {
              SibTr.entry(tc, CLASS_NAME + "addAllUsersToRole", new Object[] { users, role });
          }
          Set<String> usersForTheRole = roleToUserMap.get(role);
          if (usersForTheRole != null) {
              usersForTheRole.addAll(users);
          } else {
              usersForTheRole = users;
          }
          roleToUserMap.put(role, usersForTheRole);
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) {
              SibTr.exit(tc, CLASS_NAME + "addAllUsersToRole");
          }
      }
docs: Add all the users to a particular role
  
  @param users
  @param role