code: @Override
    public void addURL(URL url, boolean isScanned)
    {
      if (containsURL(url)) {
        return;
      }
  
      super.addURL(url, isScanned);
  
      if (isScanned)
        _pendingScanRoots.add(new ScanRoot(url, null));
    }
docs: Adds the URL to the URLClassLoader.