}

  @AndroidIncompatible // Path (for symlink creation)

  public void testScanDirectory_symlinkCycle() throws IOException {
    if (isWindows()) {
      return; // TODO: b/136041958 - Can we detect cycles under Windows?
    }
    ClassLoader loader = ClassPathTest.class.getClassLoader();
    // directory with a cycle,
    // /root
    //    /left
    //       /[sibling -> right]
    //    /right

 *       classpath scanning and make the results available to an Android app</a>.)
 *   <li>Like all of Guava, it is not tested under Windows. We have gotten <a
 *       href="https://github.com/google/guava/issues/2130">a report of a specific bug under
 *       Windows</a>.
 *   <li>It <a href="https://github.com/google/guava/issues/2712">returns only one resource for a

     * least old versions), so we mostly do. This is useful because we don't actually run our CI on
     * Windows under Java 8, at least as of this writing.
     *
     * Under Windows in particular, we want to test that:
     *
     * - Under Java 9+, createTempDir() succeeds because it can look up the *real* username, rather
     * than relying on the one from the system property.
     *

   * bash, it caught on in a flash He did the bash, he did the future bash
   */

  public void testFutureBash() {
    if (isWindows()) {
      return; // TODO: b/136041958 - Running very slowly on Windows CI.
    }
    final CyclicBarrier barrier =
        new CyclicBarrier(
            6 // for the setter threads
                + 50 // for the listeners
                + 50 // for the blocking get threads,

  }

  private static boolean isAndroid() {
    return System.getProperty("java.runtime.name", "").contains("Android");
  }

  private static boolean isWindows() {
    return OS_NAME.value().startsWith("Windows");
  }

  /**
   * Windows Media Audio. For more information, see <a
   * href="https://msdn.microsoft.com/en-us/library/windows/desktop/dd562994(v=vs.85).aspx">file
   * name extensions for Windows Media metafiles</a>.
   *
   * @since 20.0
   */
  public static final MediaType WMA_AUDIO = createConstant(AUDIO_TYPE, "x-ms-wma");

  /**
   * Windows Media metafiles. For more information, see <a

        builder.add(resource.getResourceName());
      }
    }
    return builder.build();
  }

  private static boolean isWindows() {
    return OS_NAME.value().startsWith("Windows");
  }

     * least old versions), so we mostly do. This is useful because we don't actually run our CI on
     * Windows under Java 8, at least as of this writing.
     *
     * Under Windows in particular, we want to test that:
     *
     * - Under Java 9+, createTempDir() succeeds because it can look up the *real* username, rather
     * than relying on the one from the system property.
     *

    }

    @Override
    public void failure(Service service) {
      failedServices.add(service);
    }
  }

  private static boolean isWindows() {
    return OS_NAME.value().startsWith("Windows");
  }

  private static boolean isJava8() {
    return JAVA_SPECIFICATION_VERSION.value().equals("1.8");
  }

    if (parent == null) {
      /*
       * The given directory is a filesystem root. All zero of its ancestors exist. This doesn't
       * mean that the root itself exists -- consider x:\ on a Windows machine without such a drive
       * -- or even that the caller can create it, but this method makes no such guarantees even for
       * non-root files.
       */
      return;
    }
    parent.mkdirs();