@Override
    public final void writeNameRaw(char[] bytes, int offset, int len) {
        throw new JSONException("UnsupportedOperation");
    }
A faster alternative that is functionally equivalent to Long.expand(i, 0x0F0F_0F0F_0F0F_0F0FL)
core/src/main/java/com/alibaba/fastjson2/JSONWriterUTF8.java