title: Is it possible a long GC cycle is causing "Connection refused" exceptions?
body: <p>We're seeing ConnectException with message "Connection refused" sporadically appearing at times when connecting to our Tomcat server. Could these be caused by long GC cycles?</p>
  
  <p>(We're activating up the relevant JVM flags to get more log messages on GC cycles, but I thought to ask this here anyways)</p>