driver-embedded/src/main/com/mongodb/embedded/client/MongoClients.java
public static synchronized MongoClient create(final MongoClientSettings mongoClientSettings) {
        if (mongoEmbeddedLibrary == null) {
            throw new MongoClientEmbeddedException("The mongo embedded library must be initialized first.");
        }
        try {
            Cluster cluster = new EmbeddedCluster(mongoEmbeddedLibrary, mongoClientSettings);
            return new MongoClientImpl(cluster, mongoClientSettings.getWrappedMongoClientSettings(), null);
        } catch (Exception e) {
            throw new MongoClientEmbeddedException(format("Could not create a new embedded cluster.%n"
                    + "Please ensure any existing MongoClients are fully closed before trying to create a new one.%n"
                    + "Server error message: %s", e.getMessage()), e);
        }
    }
public static synchronized MongoClient create(final MongoClientSettings mongoClientSettings) {
        if (mongoEmbeddedLibrary == null) {
            throw new MongoClientEmbeddedException("The mongo embedded library must be initialized first.");
        }
        try {
            Cluster cluster = new EmbeddedCluster(mongoEmbeddedLibrary, mongoClientSettings);
            return new MongoClientImpl(cluster, mongoClientSettings.getWrappedMongoClientSettings(), null);
        } catch (Exception e) {
            throw new MongoClientEmbeddedException(format("Could not create a new embedded cluster.%n"
                    + "Please ensure any existing MongoClients are fully closed before trying to create a new one.%n"
                    + "Server error message: %s", e.getMessage()), e);
        }
    }
public static synchronized MongoClient create ( final MongoClientSettings mongoClientSettings ) { if ( mongoEmbeddedLibrary == null ) { throw new MongoClientEmbeddedException ( "The mongo embedded library must be initialized first." ) ; } try { Cluster cluster = new EmbeddedCluster ( mongoEmbeddedLibrary , mongoClientSettings ) ; return new MongoClientImpl ( cluster , mongoClientSettings . getWrappedMongoClientSettings ( ) , null ) ; } catch ( Exception e ) { throw new MongoClientEmbeddedException ( format ( "Could not create a new embedded cluster.%n" + "Please ensure any existing MongoClients are fully closed before trying to create a new one.%n" + "Server error message: %s" , e . getMessage ( ) ) , e ) ; } }
Creates a new client.

@param mongoClientSettings the mongoClientSettings
@return the client
Creates a new client .