code: @Override
      public URLConnection openConnection(URL url) throws IOException {
          String path = url.getPath();
  
          int resourceDelimiterIndex = path.indexOf("!/");
          URLConnection conn;
  
          if (resourceDelimiterIndex == -1) {
              // The "jar" protocol requires that the path contain an entry path.
              // For backwards compatibility, we do not.  Instead, we just
              // open a connection to the underlying URL.
              conn = Utils.newURL(path).openConnection();
          } else {
              // First strip the resource name out of the path
              String urlString = ParserUtils.decode(path.substring(0, resourceDelimiterIndex));
  
              // Note that we strip off the leading "/" because ZipFile.getEntry does
              // not expect it to be present.
              String entry = ParserUtils.decode(path.substring(resourceDelimiterIndex + 2));
              // Since the URL we were passed may reference a file in a remote file system with
              // a UNC based name (\\Myhost\Mypath), we must take care to construct a new "host agnostic" 
              // URL so that when we call getPath() on it we get the whole path, irregardless of whether
              // the resource is on a local or a remote file system. We will also now validate 
              // our urlString has the proper "file" protocol prefix. 
              URL jarURL = constructUNCTolerantURL("file", urlString);
  
              conn = new WSJarURLConnectionImpl(url, jarURL.getPath(), entry, zipCache);
          }
  
          return conn;
      }
docs: begin 408408.2