title: Invióke Spring Service
body: <p>I have offered a method to change password with @RequestBody Parameter netPassword and oldPassword. Currently I don't know how to invoke the method ("old,new" not working).
  I always get the following exception: </p>
  
  <blockquote>
    <p>Required request body content is missing</p>
  </blockquote>
  
  <p>It would be great if someone could give me a hint solving this problem</p>
  
  <pre><code>@RequestMapping(value = "/changepassword", method = { RequestMethod.PUT }, produces = "application/json")
  public @ResponseBody User changePassword(final @RequestBody String newPassword, final @RequestBody String oldPassword)
  </code></pre>