code: private void setValue(boolean rollover) {
          if (!ValueUtils.areEqual(this.rollover, rollover)) {
              boolean oldValue = this.rollover;
              this.rollover = rollover;
              maybeNotifyListeners(oldValue, rollover);
          }
      }
docs: Applies the specified value and notifies the value change listeners if needed.
  
  @param rollover New value.