title: Running Jaunt (web-scraper) on Google App Engine: Java
body: <p>I'm trying to submit a form through App Engine and <strong><a href="http://jaunt-api.com/" rel="nofollow">Jaunt</a></strong>. I get this error:</p>
  
  <pre><code>java.lang.NullPointerException
      at com.jaunt.UserAgent.a(SourceFile:2337)
      at com.jaunt.UserAgent.send(SourceFile:887)
      at com.jaunt.component.Form.submit(SourceFile:1263)
      at ewohnat.server.parse.MyServlet.doJaunt(MyServlet.java:118)
  </code></pre>
  
  <p>when I try to run this code:</p>
  
  <pre><code>UserAgent userAgent = new UserAgent();
  userAgent.visit("www.someurl.com");
  Form form = userAgent.doc.forms[0];
  form.setCheckBox("cb", true);
  form.submit();
  </code></pre>
  
  <p>The exception is thrown on the last line. Any ideas?</p>