// получить документ с необходимыми полями
            Document found = collection.find().first();
            String getTitle = (String) found.get("title");
            String getUrl = (String) found.get("url");
            String getImg = (String) found.get("img");
            String getPrice = (String) found.get("price");

            // документ, который мне нужно получить в новом виде
            Document doc = collection.find(new Document("title", getTitle)
                    .append("url", getUrl)
                    .append("img", getImg)
                    .append("price", getPrice)
                    .append("sent", true)).first();

            // если документ не существует, я вставляю как новый
            if (doc == null) {
             collection.insertOne(new Document("title", getTitle)
                   .append("url", getUrl)
                   .append("img", getImg)
                   .append("price", getPrice)
                   .append("sent", true));
        }

com.mongodb.MongoSocketReadException: Prematurely reached end of stream
    at com.mongodb.connection.SocketStream.read(SocketStream.java:88)
    at com.mongodb.connection.InternalStreamConnection.receiveResponseBuffers(InternalStreamConnection.java:491)
    at com.mongodb.connection.InternalStreamConnection.receiveMessage(InternalStreamConnection.java:221)
    at com.mongodb.connection.CommandHelper.receiveReply(CommandHelper.java:134)
    at com.mongodb.connection.CommandHelper.receiveCommandResult(CommandHelper.java:121)
    at com.mongodb.connection.CommandHelper.executeCommand(CommandHelper.java:32)
    at com.mongodb.connection.InternalStreamConnectionInitializer.initializeConnectionDescription(InternalStreamConnectionInitializer.java:83)
    at com.mongodb.connection.InternalStreamConnectionInitializer.initialize(InternalStreamConnectionInitializer.java:43)
    at com.mongodb.connection.InternalStreamConnection.open(InternalStreamConnection.java:115)
    at com.mongodb.connection.UsageTrackingInternalConnection.open(UsageTrackingInternalConnection.java:46)
    at com.mongodb.connection.DefaultConnectionPool$PooledConnection.open(DefaultConnectionPool.java:381)
    at com.mongodb.connection.DefaultConnectionPool.get(DefaultConnectionPool.java:96)
    at com.mongodb.connection.DefaultConnectionPool.get(DefaultConnectionPool.java:82)
    at com.mongodb.connection.DefaultServer.getConnection(DefaultServer.java:72)
    at com.mongodb.binding.ClusterBinding$ClusterBindingConnectionSource.getConnection(ClusterBinding.java:86)
    at com.mongodb.operation.OperationHelper.withConnectionSource(OperationHelper.java:237)
    at com.mongodb.operation.OperationHelper.withConnection(OperationHelper.java:212)
    at com.mongodb.operation.FindOperation.execute(FindOperation.java:482)
    at com.mongodb.operation.FindOperation.execute(FindOperation.java:79)
    at com.mongodb.Mongo.execute(Mongo.java:772)
    at com.mongodb.Mongo$2.execute(Mongo.java:759)
    at com.mongodb.FindIterableImpl$FindOperationIterable.first(FindIterableImpl.java:207)
    at com.mongodb.FindIterableImpl.first(FindIterableImpl.java:148)
    at project.Bot.onUpdateReceived(Bot.java:347)

Document found = collection.find().first();

List<ServerAddress> List = new ArrayList<>();
            List.add(new ServerAddress("cluster0-shard-00-00-ox90k.mongodb.net", 27017));
            List.add(new ServerAddress("cluster0-shard-00-01-ox90k.mongodb.net", 27017));
            List.add(new ServerAddress("cluster0-shard-00-02-ox90k.mongodb.net", 27017));

            char[] password = "mypassword".toCharArray();
            List<MongoCredential> cred = new ArrayList<>();
            cred.add(MongoCredential.createCredential("user", "db_feed", password));
            MongoClientOptions optionsBuilder = MongoClientOptions.builder()
                    .readPreference(ReadPreference.primaryPreferred())
                    .requiredReplicaSetName("Cluster0-shard-0")
                    .maxConnectionIdleTime(60000)
                    .build();

            MongoClient mongoClient = new MongoClient(List, cred, optionsBuilder);

com.mongodb.MongoTimeoutException: Timed out after 30000 ms while waiting for a server that matches ReadPreferenceServerSelector{readPreference=primaryPreferred}. Client view of cluster state is {type=REPLICA_SET, servers=[{address=cluster0-shard-00-00-ox90k.mongodb.net:27017, type=UNKNOWN, state=CONNECTING, exception={com.mongodb.MongoSocketReadException: Prematurely reached end of stream}}, {address=cluster0-shard-00-01-ox90k.mongodb.net:27017, type=UNKNOWN, state=CONNECTING, exception={com.mongodb.MongoSocketReadException: Prematurely reached end of stream}}, {address=cluster0-shard-00-02-ox90k.mongodb.net:27017, type=UNKNOWN, state=CONNECTING, exception={com.mongodb.MongoSocketReadException: Prematurely reached end of stream}}]
        at com.mongodb.connection.BaseCluster.createTimeoutException(BaseCluster.java:369)
        at com.mongodb.connection.BaseCluster.selectServer(BaseCluster.java:101)
        at com.mongodb.binding.ClusterBinding$ClusterBindingConnectionSource.<init>(ClusterBinding.java:75)
        at com.mongodb.binding.ClusterBinding$ClusterBindingConnectionSource.<init>(ClusterBinding.java:71)
        at com.mongodb.binding.ClusterBinding.getReadConnectionSource(ClusterBinding.java:63)
        at com.mongodb.operation.OperationHelper.withConnection(OperationHelper.java:210)
        at com.mongodb.operation.FindOperation.execute(FindOperation.java:482)
        at com.mongodb.operation.FindOperation.execute(FindOperation.java:79)
        at com.mongodb.Mongo.execute(Mongo.java:772)
        at com.mongodb.Mongo$2.execute(Mongo.java:759)
        at com.mongodb.FindIterableImpl$FindOperationIterable.first(FindIterableImpl.java:207)
        at com.mongodb.FindIterableImpl.first(FindIterableImpl.java:148)
        at project.Bot.onUpdateReceived(Bot.java:347)

MongoClientURI connectionString = new MongoClientURI("mongodb://admin1:mypassword@cluster0-shard-00-00-ox90k.mongodb.net:27017,cluster0-shard-00-01-ox90k.mongodb.net:27017,cluster0-shard-00-02-ox90k.mongodb.net:27017/test?ssl=true&replicaSet=Cluster0-shard-0&authSource=admin&retryWrites=true");
MongoClient mongoClient = new MongoClient(connectionString);

MongoClient mongoClient = MongoClients.create("mongodb://user:mypassword@cluster0-shard-00-00-ox90k.mongodb.net:27017,cluster0-shard-00-01-ox90k.mongodb.net:27017,cluster0-shard-00-02-ox90k.mongodb.net:27017/test?ssl=true&replicaSet=Cluster0-shard-0&authSource=admin&retryWrites=true&maxIdleTimeMS=5000");

MongoCredential credential = MongoCredential.createCredential("user", "admin", "mypassword".toCharArray());
        MongoClientSettings settings = MongoClientSettings.builder()
                .credential(credential)
                .retryWrites(true)
                .applyToConnectionPoolSettings(builder ->
                        builder.maxConnectionIdleTime(5000, TimeUnit.MILLISECONDS))
                .applyToSslSettings(builder -> builder.enabled(true))
                .applyToClusterSettings(builder -> {
                    builder.hosts(Arrays.asList(
                            new ServerAddress("cluster0-shard-00-00-ox90k.mongodb.net", 27017),
                            new ServerAddress("cluster0-shard-00-01-ox90k.mongodb.net", 27017),
                            new ServerAddress("cluster0-shard-00-02-ox90k.mongodb.net", 27017)
                    ));
                    builder.requiredReplicaSetName("Cluster0-shard-0");
                })
                .build();

        MongoClient mongoClient = MongoClients.create(settings);