@Test
    public void test_multiple_instances() {
        SystemMonitorTarget target1 = new SystemMonitorTarget();
        SystemMonitorTarget target2 = new SystemMonitorTarget();

        assertNotNull(target1, "First instance should not be null");
        assertNotNull(target2, "Second instance should not be null");
        assertNotSame(target1, target2, "Instances should be different objects");
    }

    @Test

func (d *DeletedObject) DeleteMarkerReplicationStatus() replication.StatusType {
	return d.ReplicationState.CompositeReplicationStatus()
}

// ResyncTargetsInfo holds a slice of targets with resync info per target
type ResyncTargetsInfo struct {
	Targets []ResyncTarget `json:"target,omitempty"`
}

     *
     * @param target1
     *            the first string
     * @param target2
     *            the second string
     * @return true if the strings are equal, false otherwise
     */
    public static boolean equals(final String target1, final String target2) {
        return target1 == null ? target2 == null : target1.equals(target2);
    }

    /**

		srvCfg[k][Default] = DefaultKVS[k]
	}
	return srvCfg
}

// Target signifies an individual target
type Target struct {
	SubSystem string
	KVS       KVS
}

// Targets sub-system targets
type Targets []Target

// GetKVS - get kvs from specific subsystem.
func (c Config) GetKVS(s string, defaultKVS map[string]KVS) (Targets, error) {
	if len(s) == 0 {
		return nil, Errorf("input cannot be empty")
	}

			Value: "2",
		},
	}
)

// GetNotifyMySQL - returns a map of registered notification 'mysql' targets
func GetNotifyMySQL(mysqlKVS map[string]config.KVS) (map[string]target.MySQLArgs, error) {
	mysqlTargets := make(map[string]target.MySQLArgs)
	for k, kv := range config.Merge(mysqlKVS, target.EnvMySQLEnable, DefaultMySQLKVS) {
		enableEnv := target.EnvMySQLEnable
		if k != config.Default {

// GetLambdaWebhook - returns a map of registered notification 'webhook' targets
func GetLambdaWebhook(webhookKVS map[string]config.KVS, transport *http.Transport) (
	map[string]target.WebhookArgs, error,
) {
	webhookTargets := make(map[string]target.WebhookArgs)
	for k, kv := range config.Merge(webhookKVS, target.EnvWebhookEnable, DefaultWebhookKVS) {
		enableEnv := target.EnvWebhookEnable
		if k != config.Default {

      return super.containsAll(targets);
    }

    /*
     * If targets is a sorted set with the same comparator, containsAll can run
     * in O(n) time stepping through the two collections.
     */
    Iterator<E> thisIterator = iterator();

    Iterator<?> thatIterator = targets.iterator();
    // known nonempty since we checked targets.size() > 1

    if (!thisIterator.hasNext()) {

important exceptions.

Replication status on the source cluster will be marked as `COMPLETED` only after replication is completed on all targets. If one or more targets failed replication, the replication status is reflected as `PENDING`.

	},
	{ // 2. replication status for one target
		name:      "replication status for one target",
		rs:        ReplicationState{ReplicationStatusInternal: "arn1=PENDING;", Targets: map[string]replication.StatusType{"arn1": "PENDING"}},
		expStatus: replication.Pending,
	},
	{ // 3. replication status for one target - incorrect format
		name:      "replication status for one target",

		PostgreSQL:    make(map[string]target.PostgreSQLArgs),
		Elasticsearch: make(map[string]target.ElasticsearchArgs),
	}
	cfg.NSQ[defaultTarget] = target.NSQArgs{}
	cfg.AMQP[defaultTarget] = target.AMQPArgs{}
	cfg.MQTT[defaultTarget] = target.MQTTArgs{}
	cfg.NATS[defaultTarget] = target.NATSArgs{}
	cfg.Redis[defaultTarget] = target.RedisArgs{}
	cfg.MySQL[defaultTarget] = target.MySQLArgs{}