docs: public void processExpires() {
  
      long timeNow = System.currentTimeMillis();
      InternalSession sessions[] = findSessions();
      int expireHere = 0 ;
  
      if(log.isDebugEnabled())
        log.debug("Start expire sessions {} at {} sessioncount {}", getName(), timeNow, sessions.length);
      for (int i = 0; i < sessions.length; i++) {
        if (sessions[i]!=null && !sessions[i].isValid()) {
          expireHere++;
        }
      }
      long timeEnd = System.currentTimeMillis();
      if(log.isDebugEnabled())
        log.debug("End expire sessions {} processingTime {} expired sessions: {}", getName(), timeEnd - timeNow, expireHere);
      processingTime += ( timeEnd - timeNow );
  
    }