code: static public byte[] getEnglishBytes(String data) {
          if (null == data) {
              return null;
          }
          char[] chars = data.toCharArray();
          byte[] bytes = new byte[chars.length];
          for (int i = 0; i < chars.length; i++) {
              bytes[i] = (byte) chars[i];
          }
          return bytes;
      }
docs: Utility method to get ISO english encoded bytes from the input string.
  
  @param data
  @return byte[]