title: How long is message locked for specified subscriber in ActiveMQ using STOMP?
body: <p>I want read messages from ActiveMQ with multiple consumers without repeated read.</p>
  
  <p>How long is message locked after SUBSCRIBE if it is locked at all?</p>
  
  <p>Is it until disconnect or timeout?</p>
  
  <p>I am using ActiveMQ but not understand protocol.</p>