/**
  * Obtains the tree nodes that are mapped to the specified <code>MappingClassColumn</code>.
  *
  * @param theMappingColumn the <code>MappingClassColumn</code> whose mapped tree nodes are being
  *     requested
  * @return an unmodifiable list of mapped tree nodes or an empty list
  * @throws IllegalArgumentException if input parameter is <code>null</code>
  */
 public List getMappingClassColumnOutputLocations(MappingClassColumn theMappingColumn) {
   return mappingLocator.getMappingClassColumnOutputLocations(theMappingColumn);
 }