HTTH-822 — A bad %xx sequence in URI has been encountered
HTTP URIs can use escaping of characters. An escaped character has the form %xx, where each 'x' is a hexadecimal number. HTTP proxy performs URI normalization. In a normalized URI, exactly special characters which need escaping are escaped and all other characters are unescaped. If an invalid %xx sequence is found, this message is logged and the '%' character is converted to '%25'.