/**
* Returns the component hierarchy to be added to this condition's description in case of a component lookup failure.
* @return the component hierarchy to be added to this condition's description in case of a component lookup failure.
*/
@Override protected String descriptionAddendum() {
ComponentLookupException error = notFoundError.get();
if (error == null) return EMPTY_TEXT;
return concat(lineSeparator(), error.getMessage());
}