code: public void setIconInfo(CommandButtonIconInfo iconInfo) {
          if (iconInfo == null) {
              iconInfo = CommandButtonIconInfo.BLANK_ICON_INFO;
          }
          CommandButtonIconInfo old = this.iconInfo;
          this.iconInfo = iconInfo;
          firePropertyChange(ICON_INFO_PROPERTY, old, this.iconInfo);
      }
docs: {@inheritDoc}