Fetch _id of a Document in MongoDB 3.3.0 above

Trying to refactor a lot of code from one of our services I ended up using a piece of code as :

Document documentObject;
String docMongoId = ((DBObject) documentObject).removeField("_id").toString();

which though not on compiling but during execution has resulted into

java.lang.ClassCastException: com.pack.model.Document cannot be cast to com.mongodb.DBObject

wherein Document is a type defined by us. We now have a piece of code as follows :

MongoCollection<Document> dbCollection = mongoClient.getDatabase("dbName")
                .getCollection("collectionName", Document.class);

Seeking help, already went through few links -

Get ID of last inserted document in a mongoDB w/ Java driver

MongoError: cannot change _id of a document

How to query documents using "_id" field in Java mongodb driver?

which mostly suggest using BasicDBObject and we don't want to be using the older context anymore. Is there a way I can access the _id of the Document now(with client update) in java?

Please do ask for any additional or missing information required here.

The idea is to convert from bson type Document to your model Document. Added sample class demonstrating the use.

import com.mongodb.MongoClient;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoCursor;
import com.mongodb.client.MongoDatabase;
import org.bson.types.ObjectId;

public class Mongo {

    public static void main(String[] args) {

        MongoClient mongoClient = new MongoClient();

        MongoDatabase db = mongoClient.getDatabase("dbName");

        MongoCollection <org.bson.Document> dbCollection = db.getCollection("collectionName", org.bson.Document.class);

        MongoCursor <org.bson.Document> iterator = dbCollection.find().iterator();

        while (iterator.hasNext()) {
            org.bson.Document inDoc = iterator.next();
            Document outDoc = new Document();
            outDoc.setId(inDoc.getObjectId("_id"));
            outDoc.setName(inDoc.getString("name"));
            System.out.print(outDoc.toString());
        }

    }


    public static class Document {

        private ObjectId id;
        private String name;

        public ObjectId getId() {
            return id;
        }

        public void setId(ObjectId id) {
            this.id = id;
        }

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        @Override
        public String toString() {
            return "Document{" +
                "id=" + id +
                ", name='" + name + '\'' +
                '}';
        }

    }
}