MediaType.create("text", "plain")
                .withParameters(ImmutableListMultimap.of("a", "2", "a", "1")))
        .addEqualityGroup(MediaType.create("text", "csv"))
        .addEqualityGroup(MediaType.create("application", "atom+xml"))
        .testEquals();
  }

  @J2ktIncompatible
  @GwtIncompatible // Non-UTF-8 Charset
  public void testEquals_nonUtf8Charsets() {

            MediaType.create("text", "plain")
                .withParameters(ImmutableListMultimap.of("a", "2", "a", "1")))
        .addEqualityGroup(MediaType.create("text", "csv"))
        .addEqualityGroup(MediaType.create("application", "atom+xml"))
        .testEquals();
  }

  @J2ktIncompatible
  @GwtIncompatible // Non-UTF-8 Charset
  public void testEquals_nonUtf8Charsets() {

      createConstantUtf8(TEXT_TYPE, "cache-manifest");
  public static final MediaType CSS_UTF_8 = createConstantUtf8(TEXT_TYPE, "css");
  public static final MediaType CSV_UTF_8 = createConstantUtf8(TEXT_TYPE, "csv");
  public static final MediaType HTML_UTF_8 = createConstantUtf8(TEXT_TYPE, "html");
  public static final MediaType I_CALENDAR_UTF_8 = createConstantUtf8(TEXT_TYPE, "calendar");