@Override
  public void afterCreateProxy(ObjectName objectName, Class interfaceClass, Object proxyObject,
      FederationComponent newVal) {
    if (!distributedMBeanList.contains(interfaceClass)) {
      return;
    }
    AggregateHandler handler = getHandler(interfaceClass);
    handler.handleProxyAddition(objectName, interfaceClass, proxyObject, newVal);
  }
@param interfaceClass class of the proxy interface
@return appropriate handler instance to handle the proxy addition or removal
geode-core/src/main/java/org/apache/geode/management/internal/beans/MBeanAggregator.java