code: @SuppressWarnings("deprecation")
  	@VisibleForTesting
  	public static boolean hasNewNetworkConfig(final Configuration config) {
  		return config.contains(TaskManagerOptions.NETWORK_BUFFERS_MEMORY_FRACTION) ||
  			config.contains(TaskManagerOptions.NETWORK_BUFFERS_MEMORY_MIN) ||
  			config.contains(TaskManagerOptions.NETWORK_BUFFERS_MEMORY_MAX) ||
  			!config.contains(TaskManagerOptions.NETWORK_NUM_BUFFERS);
  	}
docs: Returns whether the new network buffer memory configuration is present in the configuration
  object, i.e. at least one new parameter is given or the old one is not present.
  
  @param config configuration object
  @return <tt>true</tt> if the new configuration method is used, <tt>false</tt> otherwise