<dependency>
	<groupId>org.mongodb</groupId>
	<artifactId>mongodb-driver</artifactId>
	<version>3.2.2</version>
</dependency>

  MongoClientURI uri = new MongoClientURI("mongodb://192.168.100.140:27017/local",

                MongoClientOptions.builder().cursorFinalizerEnabled(false));

  MongoClient client = new MongoClient(uri);

  MongoDatabase db=client.getDatabase("local");

  MongoCollection<Document> collection = db.getCollection("system.users");

  List<Document> foundDocument = collection.find().into(new ArrayList<Document>());

  System.out.println(foundDocument);

  MongoClient client = null;

  ServerAddress serverAddress = new ServerAddress("192.168.100.140",27017);

  List<ServerAddress> seeds = new ArrayList<ServerAddress>();

  seeds.add(serverAddress);

  MongoCredential credentials = MongoCredential.createScramSha1Credential("admin", "admin", "admin".toCharArray());

  List<MongoCredential> credentialsList = new ArrayList<MongoCredential>();

  credentialsList.add(credentials);

  client = new MongoClient(seeds, credentialsList);

  MongoDatabase db = client.getDatabase("admin");

  // MongoIterable<Document> collections=db.listCollections();

  MongoCollection<Document> collection = db.getCollection("system.users");

  List<Document> foundDocument = collection.find().into(

    new ArrayList<Document>());

  System.out.println(foundDocument);