private String manyEventsHappenedInSmallTimeSpan(@NotNull Object event) {
    int eventsPosted = myEventsPosted.incrementAndGet();
    boolean shouldLog = false;
    if (eventsPosted > myEventCountThreshold) {
      synchronized (myEventsPosted) {
        if (myEventsPosted.get() > myEventCountThreshold) {
          long timeNow = System.currentTimeMillis();
          shouldLog = timeNow - myStartedCounting < myTimeSpanMs;
          myEventsPosted.set(0);
          myStartedCounting = timeNow;
        }
      }
    }
    return shouldLog ? generateMessage(event, eventsPosted) : null;
  }
private String manyEventsHappenedInSmallTimeSpan(@NotNull Object event)