final EventBus eb
	final Container container
	final Logger logger
	final MongoClient mongo
	final MongoDatabase db

	public Service(EventBus eb, Container container) {
		this.eb = eb
		this.container = container
		logger = container.logger

		mongo = MongoClients.create(new MongoClientURI('mongodb://localhost:27017'), MongoClientOptions.builder().build())
		logger.info('got mongo client: ' + mongo)
		db = mongo.getDatabase('mydb')
		logger.info('got db: ' + db)
	}

	public void terminate() {
		mongo.close()
	}

got mongo client: org.mongodb.async.MongoClientImpl@6e16e721
got db: org.mongodb.async.MongoDatabaseImpl@169e0757
Exception in thread "Thread-6" java.lang.IllegalAccessError: tried to access class org.mongodb.connection.AsynchronousSocketChannelStream$AsyncWritableByteChannelAdapter$1$1 from class org.mongodb.connection.AsynchronousSocketChannelStream$AsyncWritableByteChannelAdapter$1
	at org.mongodb.connection.AsynchronousSocketChannelStream$AsyncWritableByteChannelAdapter$1.completed(AsynchronousSocketChannelStream.java:183)
	at org.mongodb.connection.AsynchronousSocketChannelStream$AsyncWritableByteChannelAdapter$1.completed(AsynchronousSocketChannelStream.java:180)
	at org.mongodb.connection.AsynchronousSocketChannelStream$2.completed(AsynchronousSocketChannelStream.java:140)
	at org.mongodb.connection.AsynchronousSocketChannelStream$2.completed(AsynchronousSocketChannelStream.java:137)
	at sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126)
	at sun.nio.ch.UnixAsynchronousSocketChannelImpl.finishConnect(UnixAsynchronousSocketChannelImpl.java:278)
	at sun.nio.ch.UnixAsynchronousSocketChannelImpl.finish(UnixAsynchronousSocketChannelImpl.java:198)
	at sun.nio.ch.UnixAsynchronousSocketChannelImpl.onEvent(UnixAsynchronousSocketChannelImpl.java:213)
	at sun.nio.ch.KQueuePort$EventHandlerTask.run(KQueuePort.java:301)
	at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)