code: protected void fireKernelDisconnected(URI uri) {
  		this.logger.getKernelLogger().info(MessageFormat.format(Messages.HazelcastKernelDiscoveryService_1, uri, getCurrentKernel()));
  		for (final KernelDiscoveryServiceListener listener : this.listeners.getListeners(KernelDiscoveryServiceListener.class)) {
  			listener.kernelDisconnected(uri);
  		}
  	}
docs: Notifies the listeners about the killing of a kernel.
  
  @param uri URI of the disconnected kernel.