code: public void destroyDestination(Destination d)
  	{
  		// method invocation is idempotent
  		synchronized (proxies) {
  			final AggregatorProxy p = (AggregatorProxy) proxies.get(d.getAddress());
  			if (p == null)
  				return;
  			if (p.getDestination() == d) {
  				proxies.remove(d.getAddress());
  				d.destroy();
  			}
  			else
  				logger.warn("not owner of " + d.getAddress());
  		}
  	}
docs: /* (non-Javadoc)
  @see tuwien.auto.calimero.mgmt.TransportLayer#destroyDestination
  (tuwien.auto.calimero.mgmt.Destination)