code: private boolean gatherHomePageEvidence(Dependency dependency, EvidenceType type, Pattern pattern,
              String source, String name, String contents) {
          final Matcher matcher = pattern.matcher(contents);
          boolean found = false;
          if (matcher.find()) {
              final String url = matcher.group(4);
              if (UrlStringUtils.isUrl(url)) {
                  found = true;
                  dependency.addEvidence(type, source, name, url, Confidence.MEDIUM);
              }
          }
          return found;
      }
docs: Collects evidence from the home page URL.
  
  @param dependency the dependency that is being analyzed
  @param type the type of evidence
  @param pattern the pattern to match
  @param source the source of the evidence
  @param name the name of the evidence
  @param contents the home page URL
  @return true if evidence was collected; otherwise false