  public static void validateHeader(CharSequence value) {
    for (int i = 0;i < value.length();i++) {
      char c = value.charAt(i);
      if (c == '\r' || c == '\n') {
        throw new IllegalArgumentException("Illegal header character: " + ((int)c));
      }
    }
  }
The product receives input or data, but it does
        not validate or incorrectly validates that the input has the
        properties that are required to process the data safely and
        correctly.