cache.iamUserPolicyMap.Store(u, newMappedPolicy(strings.Join(pset.ToSlice(), ",")))
			return true
		})

		// update group policy map
		cache.iamGroupPolicyMap.Range(func(g string, mp MappedPolicy) bool {
			pset := mp.policySet()
			if !pset.Contains(policy) {
				return true
			}
			pset.Remove(policy)
			cache.iamGroupPolicyMap.Store(g, newMappedPolicy(strings.Join(pset.ToSlice(), ",")))

	// running server by creating the policies after start up.
	for arn, rolePolicies := range m {
		specifiedPoliciesSet := newMappedPolicy(rolePolicies).policySet()
		validPolicies, _ := sys.store.FilterPolicies(rolePolicies, "")
		knownPoliciesSet := newMappedPolicy(validPolicies).policySet()
		unknownPoliciesSet := specifiedPoliciesSet.Difference(knownPoliciesSet)
		if len(unknownPoliciesSet) > 0 {

	case roleArn != "":
		_, policy, err := globalIAMSys.GetRolePolicy(roleArn)
		if err != nil {
			writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
			return
		}
		policySlice := newMappedPolicy(policy).toSlice()
		effectivePolicy = globalIAMSys.GetCombinedPolicy(policySlice...)

	case hasPolicyClaim:
		effectivePolicy = globalIAMSys.GetCombinedPolicy(policySetFromClaims.ToSlice()...)

	default: