private void reschedule() {
        final DebuggerSession session = getContext().getDebuggerSession();
        if (session != null && session.isAttached() && !session.isPaused() && !myUpdateLabelsAlarm.isDisposed()) {
          myUpdateLabelsAlarm.addRequest(this, LABELS_UPDATE_DELAY_MS, ModalityState.nonModal());
        }
      }
private void reschedule()