while (matcher.find()) {
            MatchResult xrefMatcher = matcher.toMatchResult();
            String link = xrefMatcher.group(1);
            Matcher linkMatcher = samplesLinkWithHashPattern.matcher(link);
            if (linkMatcher.matches()) {
                MatchResult result = linkMatcher.toMatchResult();
                String fileName = getFileName(result.group(1), sourceFile);

   */
  private static MatchResult createMatchResult() {
    Matcher matcher = Pattern.compile(".").matcher("X");
    matcher.find();
    return matcher.toMatchResult();
  }

  private static final ClassToInstanceMap<Object> DEFAULTS =
      ImmutableClassToInstanceMap.builder()
          // primitives
          .put(Object.class, "")
          .put(Number.class, 0)

   */
  private static MatchResult createMatchResult() {
    Matcher matcher = Pattern.compile(".").matcher("X");
    matcher.find();
    return matcher.toMatchResult();
  }

  private static final ClassToInstanceMap<Object> DEFAULTS =
      ImmutableClassToInstanceMap.builder()
          // primitives
          .put(Object.class, "")
          .put(Number.class, 0)