gistfile1.java

/**
   * Open a browser at the given URL using {@link Desktop} if available, or alternatively output the
   * URL to {@link System#out} for command-line applications.
   *
   * @param url URL to browse
   */
  public static void browse(String url) {
    Preconditions.checkNotNull(url);
    // Ask user to open in their browser using copy-paste
    System.out.println("Please open the following address in your browser:");
    System.out.println("  " + url);
    // Attempt to open it in the browser
    try {
      if (Desktop.isDesktopSupported()) {
        Desktop desktop = Desktop.getDesktop();
        if (desktop.isSupported(Action.BROWSE)) {
          System.out.println("Attempting to open that address in the default browser now...");
          desktop.browse(URI.create(url));
        }
      }
    } catch (IOException e) {
      LOGGER.log(Level.WARNING, "Unable to open browser", e);
    } catch (InternalError e) {
      // A bug in a JRE can cause Desktop.isDesktopSupported() to throw an
      // InternalError rather than returning false. The error reads,
      // "Can't connect to X11 window server using ':0.0' as the value of the
      // DISPLAY variable." The exact error message may vary slightly.
      LOGGER.log(Level.WARNING, "Unable to open browser", e);
    }
  }