code: public static PrefixedProperties createCascadingPrefixProperties(final List<PrefixConfig> configs) {
  		PrefixedProperties properties = null;
  		for (final PrefixConfig config : configs) {
  			if (properties == null) {
  				properties = new PrefixedProperties((config == null) ? new DynamicPrefixConfig() : config);
  			} else {
  				properties = new PrefixedProperties(properties, (config == null) ? new DynamicPrefixConfig() : config);
  			}
  		}
  		return properties;
  	}
docs: Creates the cascading prefix properties.
  
  @param configs
  the configs
  @return the prefixed properties