title: @PathVariable is simply not working
body: <p>In my Spring Boot application I added an API </p>
  
  <pre><code>@RequestMapping(value = "/abc/{input}", method=RequestMethod.GET)
  @ResponseBody
  public WhitelistStatus getInput(@PathVariable("input") String input);
  </code></pre>
  
  <p>I deployed this application and made a call - <a href="http://localhost:8080/abc/123" rel="nofollow noreferrer">http://localhost:8080/abc/123</a></p>
  
  <p>I put a debug point in my code and the path variable input which should be "123" always comes as null.</p>
  
  <p>I've been trying to resolve this for sometime now. There is no ambiguity in the URL as this is the only API. Can someone please tell me what I'm doing wrong here?</p>