Your tutorial seems to be "old", try out a more up to date version. The current release of the RabbitMQ Java AMQP library is 3.1.3.. But also have a look at the Maven Repository. Try out version 3.1.1, it's the newest version in the mvn repo.
<dependency>
<groupId>com.rabbitmq</groupId>
<artifactId>amqp-client</artifactId>
<version>3.1.1</version>
</dependency>