@GwtIncompatible // Non-UTF-8 Charset
  public void testUtf16() {
    assertEquals(Charset.forName("UTF-16"), Charsets.UTF_16);
  }

  @J2ktIncompatible
  @GwtIncompatible // Non-UTF-8 Charset
  public void testWhyUsAsciiIsDangerous() {
    byte[] b1 = "朝日新聞".getBytes(Charsets.US_ASCII);
    byte[] b2 = "聞朝日新".getBytes(Charsets.US_ASCII);
    byte[] b3 = "????".getBytes(Charsets.US_ASCII);
    byte[] b4 = "ニュース".getBytes(Charsets.US_ASCII);