List<Data> list = new ArrayList<Data>();
list.add(ss.toData("item1"));
list.add(ss.toData("item2"));
final SimpleClient client = getClient();
client.send(new ContainsRequest(queueName, list));
Boolean result = (Boolean) client.receive();
assertTrue(result);
list.add(ss.toData("item0"));
client.send(new ContainsRequest(queueName, list));
result = (Boolean) client.receive();
assertFalse(result);
}