confmaster/src/main/java/com/navercorp/nbasearc/confmaster/io/EventSelector.java
public void loopProcess()
    {
        for (Session session : sessions.values())
        {
            long timeMillis = System.currentTimeMillis();
            try {
                session.callbackOnLoop(timeMillis);
            } catch (Exception e) {
                Logger.error("Exception occurs while callbackOnLoop on {}", session, e);
            }
        }
    }
public void loopProcess()
    {
        for (Session session : sessions.values())
        {
            long timeMillis = System.currentTimeMillis();
            try {
                session.callbackOnLoop(timeMillis);
            } catch (Exception e) {
                Logger.error("Exception occurs while callbackOnLoop on {}", session, e);
            }
        }
    }
to be called on each loop to process idle routines.