code: protected String evalExtends()
      {
          String ret = null;
          // regular expression for the package name
          final Pattern exPattern = Pattern.compile("@eFapsExtends[\\s]*[a-zA-Z\\._-]*\\b");
          final Matcher exMatcher = exPattern.matcher(getCode());
          if (exMatcher.find()) {
              ret = exMatcher.group().replaceFirst("^@eFapsExtends", "");
          }
          return ret == null ? null : ret.trim();
      }
docs: This Method extracts the extend from the source.
  
  @return extend of the source