code: public static String getStringValue(Name name, String key) {
          return (String) getValue(name, key);
      }
docs: Get the value of the Rdn with the requested key in the supplied Name as a String.
  
  @param name the Name in which to search for the key.
  @param key the attribute key to search for.
  @return the String value of the rdn corresponding to the <b>first</b> occurrence of the requested key.
  @throws NoSuchElementException if no corresponding entry is found.
  @throws ClassCastException if the value of the requested component is not a String.
  @since 2.0