private NotificationBroadcasterSupport getAttributeChangeBroadcaster() {
    return m_attributeChangeBroadcaster;
  }
@author <a href="mailto:biorn_steedom@users.sourceforge.net">Simone Bordet</a>
@version $Revision: 1.14 $
geode-core/src/main/java/org/apache/geode/admin/jmx/internal/MX4JModelMBean.java