Kryo5 deserialization lost Locale script field about kryo HOT 1 OPEN

public static class ScriptAwareLocaleSerializer extends ImmutableSerializer<Locale> {

    public void write (Kryo kryo, Output output, Locale l) {
        output.writeAscii(l.getLanguage());
        output.writeAscii(l.getCountry());
        output.writeString(l.getVariant());
        output.writeAscii(l.getScript());
    }

    public Locale read (Kryo kryo, Input input, Class<? extends Locale> type) {
        String language = input.readString();
        String country = input.readString();
        String variant = input.readString();
        String script = input.readString();
        return create(language, country, varian, script);
    }

    protected Locale create (String language, String country, String variant) {
        if (script != null) {
            return new Locale.Builder()
                    .setLanguage(language)
                    .setRegion(country)
                    .setVariant(variant)
                    .setScript(script)
                    .build();
        } else {
            return new Locale(language, country, variant);
        }
    }
}

kryo.addDefaultSerializer(Locale.class, ScriptAwareLocaleSerializer.class);