code: public static Origin get(PropertySource<?> propertySource, String name) {
  		Origin origin = OriginLookup.getOrigin(propertySource, name);
  		return (origin != null) ? origin : new PropertySourceOrigin(propertySource, name);
  	}
docs: Get an {@link Origin} for the given {@link PropertySource} and
  {@code propertyName}. Will either return an {@link OriginLookup} result or a
  {@link PropertySourceOrigin}.
  @param propertySource the origin property source
  @param name the property name
  @return the property origin