code: private void addBootJars(List<File> jarFiles, List<URL> urlList) {
          for (File jarFile : jarFiles) {
              try {
                  urlList.add(jarFile.toURI().toURL());
              } catch (MalformedURLException e) {
                  // Unlikely: we're making URLs for files we know exist
              }
          }
      }
docs: Given the list of files, add the URL for each file to the list of URLs
  
  @param jarFiles List of Files (source)
  @param urlList List of URLs (target)