title: Play! framework: no data received
body: <p>this is a route I defined:<br>
  <code>GET   /user/:id                    controllers.Users.show(id: Long)</code></p>
  
  <p>this is the handler (in <code>Users</code> class) for this GET requset:  </p>
  
  <pre><code>public static Result show(long id) {
          return ok("hello " + id);
      }
  </code></pre>
  
  <p>I get this error:  </p>
  
  <blockquote>
    <p>No data received
    Unable to load the webpage because the server sent no data.
    Here are some suggestions:
    Reload this webpage later.
    Error 324 (net::ERR_EMPTY_RESPONSE): The server closed the connection without sending any data.</p>
  </blockquote>
  
  <p>this is weird because it's the only page with this problem and everything seems to be normal.<br>
  so why is it happening?</p>