title: RabbitMQ: Check queue exists
body: <p>For rabbitMQ it can be checked with channel.queueDeclarePassive if a queue exists or not, throwing an exception if the later is the case. However, also the channel will be terminated then.</p>
  
  <p>How can I check if a queue exists, without that the channel will be terminated?</p>
  
  <p>Thanks</p>