code: @Nonnull
    public static String getHexEncoded (@Nonnull final String sInput, @Nonnull final Charset aCharset)
    {
      ValueEnforcer.notNull (sInput, "Input");
      ValueEnforcer.notNull (aCharset, "Charset");
  
      return getHexEncoded (sInput.getBytes (aCharset));
    }
docs: Convert a string to a byte array and than to a hexadecimal encoded string.
  
  @param sInput
  The source string. May not be <code>null</code>.
  @param aCharset
  The charset to use. May not be <code>null</code>.
  @return The String representation of the byte array of the string.