code: protected String getSubstituteTypeName(String typeName)
      {
          if (typeNameMap == null)
          {
              return typeName;
          }
          String shortName = typeNameMap.get(typeName);
          return shortName == null ? typeName : shortName;
      }
docs: Used internally to substitute type names.  For example, 'java.util.ArrayList, could have a substitute
  type name of 'alist'.  Set substitute type names using the TYPE_NAME_MAP option.
  @param typeName String name of type to substitute.
  @return String substituted type name.