Trying to create simple producer with new KafkaProducer

SimpleProducer.java

import org.apache.kafka.clients.producer.KafkaProducer;
import org.apache.kafka.clients.producer.Producer;
import org.apache.kafka.clients.producer.ProducerRecord;

import java.util.Properties;
import java.util.concurrent.ExecutionException;

/**
 * Created by dsmith on 8/5/15.
 */
public class SimpleProducer {
    public static void main(String[] args) throws ExecutionException, InterruptedException {
        Properties props = new Properties();
        props.put("bootstrap.servers", args[0]);
        props.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
        props.put("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");
        props.put("metadata.fetch.timeout.ms", 1000);

        final Producer<String, String> producer = new KafkaProducer<>(props);
        producer.send(new ProducerRecord<>("test-topic", "test-key", "test-value")).get();
        producer.close();
    }
}