rulesCopy[pattern] = targetIDSet.Clone()
	}

	return rulesCopy
}

// Union - returns union with given rules as new rules.
func (rules Rules) Union(rules2 Rules) Rules {
	nrules := rules.Clone()

	for pattern, targetIDSet := range rules2 {
		nrules[pattern] = nrules[pattern].Union(targetIDSet)
	}

	return nrules
}

// Difference - returns difference with given rules as new rules.

	}
	if !r.Prefix.set {
		return r.Filter.Validate()
	}
	return nil
}

func (r Rule) validateTransition() error {
	return r.Transition.Validate()
}

func (r Rule) validateNoncurrentTransition() error {
	return r.NoncurrentVersionTransition.Validate()
}

// GetPrefix - a rule can either have prefix under <rule></rule>, <filter></filter>
// or under <filter><and></and></filter>. This method returns the prefix from the

	exit 1
fi

## Check if ILM expiry rules replicated
sleep 30s

./mc ilm rule list siteb/bucket
count=$(./mc ilm rule list siteb/bucket --json | jq '.config.Rules | length')
if [ $count -ne 1 ]; then
	echo "BUG: ILM expiry rules not replicated to 'siteb'"
	exit 1
fi

## Check replication of rules content
expDays=$(./mc ilm rule list siteb/bucket --json | jq '.config.Rules[0].Expiration.Days')

		for t := range (*workers)[0] {
			if t, ok := t.(newerNoncurrentTask); ok {
				expired = append(expired, t.versions...)
			}
		}
	}()
	lc := lifecycle.Lifecycle{
		Rules: []lifecycle.Rule{
			{
				ID:     "max-versions",
				Status: "Enabled",
				NoncurrentVersionExpiration: lifecycle.NoncurrentVersionExpiration{
					NewerNoncurrentVersions: 1,
				},
			},
		},
	}

This JSON rule is equivalent to the following MinIO Client command:
```
mc ilm rule add --noncurrent-expire-days 30 --noncurrent-expire-newer 5 myminio/mydata
```

#### 3.2.a Automatic removal of noncurrent versions keeping only most recent ones immediately (MinIO only extension)

This is available only on MinIO as an extension to the NewerNoncurrentVersions feature. The following rule makes it possible to remove older noncurrent versions

			}
		}
		return err
	}

	if len(r.Rules) > maxBatchRules {
		return batchExpireJobError{
			Code:           "InvalidArgument",
			Description:    "Too many rules. Batch expire job can't have more than 100 rules",
			HTTPStatusCode: http.StatusBadRequest,
		}
	}

	for _, rule := range r.Rules {
		if err := rule.Validate(); err != nil {
			return batchExpireJobError{

		} else {
			rMap[id] = rl
		}
	}

	var rules []lifecycle.Rule
	for _, rule := range rMap {
		rules = append(rules, rule)
	}

	// no rules, return
	if len(rules) == 0 {
		return []byte{}, nil
	}

	// get final list for write
	finalLcCfg := lifecycle.Lifecycle{
		XMLName:         xmlName,
		Rules:           rules,
		ExpiryUpdatedAt: &updatedAt,
	}

			var rebalanced, expired int
			for _, version := range fivs.Versions {
				// Skip transitioned objects for now. TBD
				if version.IsRemote() {
					continue
				}

				// Apply lifecycle rules on the objects that are expired.
				if filterLifecycle(bucket, version.Name, version) {
					expired++
					continue
				}

				// any object with only single DEL marker we don't need

			return objInfo, err
		}
		replcfg, err = getReplicationConfig(ctx, bucket)
		if err != nil {
			return objInfo, err
		}
	}

	// expiration attempted on a bucket with no lifecycle
	// rules shall be rejected.
	if lc == nil && opts.Expiration.Expire {
		if opts.VersionID != "" {
			return objInfo, VersionNotFound{
				Bucket:    bucket,
				Object:    object,
				VersionID: opts.VersionID,

		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
		return
	}

	if !proxy.Proxy { // apply lifecycle rules only for local requests
		// Automatically remove the object/version if an expiry lifecycle rule can be applied
		if lc, err := globalLifecycleSys.Get(bucket); err == nil {
			rcfg, err := globalBucketObjectLockSys.Get(bucket)
			if err != nil {