public void updateRegion(FederationComponent newState, FederationComponent oldState) {
    monitor.aggregate(newState, oldState);
  }
Removes proxy from the proxy set

@param objectName name of the MBean
@param proxy reference to the actual proxy
@return true if this DistributedRegion's proxy set is empty
geode-core/src/main/java/org/apache/geode/management/internal/beans/DistributedRegionBridge.java