docs: public static Encoding getJVMEncoding(String jvmEncoding) {
      if ("UTF-8".equals(jvmEncoding)) {
        return new UTF8Encoding();
      }
      if (Charset.isSupported(jvmEncoding)) {
        return new Encoding(jvmEncoding);
      } else {
        return DEFAULT_ENCODING;
      }
    }