title: What is an idle http connection?
body: <p>I am working with http connection and using a MultiThreadedHttpConnectionManager and httpClient.</p>
  
  <p>For my purpose I am closing all the idle connection after 1ms with the following method : <code>closeIdleConnections(1)</code>.</p>
  
  <p>I am wondering what is considered as an " idle connection" in http ? It seems that waiting for an answer is not an idle connection.</p>
  
  <p>Regards,</p>