title: Escaping symbols in Gatling jsonpath
body: <p>We're using Gatling jsonpath in scala to parse our JSON, and are using it like so as per the docs:</p>
  
  <p>val jsonSample = (new ObjectMapper).readValue("""{"@a":"A","@b":"B"}""", classOf[Object])</p>
  
  <p>JsonPath.query("$.@a", jsonSample).right.map(_.toVector)</p>
  
  <p>However, this code fails, and we get an error message about "string matching regex '[$_\d... etc etc }]* expected, but @ found". </p>
  
  <p>I've tried using backslashes, but these do not work and give the same error message. Does anyone know how to escape the @ symbol? </p>
  
  <p>It's worth noting I also tried the solution with hex on this page, but it doesn't work for the above. <a href="https://stackoverflow.com/questions/37220687/how-do-you-escape-the-symbol-in-jsonpath">How do you escape the @ symbol in jsonpath?</a></p>
  
  <p>Thanks!</p>