title: jasckson libraries in google app engine not included in whitelist
body: <p>when I have these imports in my code or use any of the classes and and methods, I get this error from intelli J IDE.</p>
  
  <pre><code>import com.fasterxml.jackson.core.type.TypeReference;
  import com.fasterxml.jackson.databind.ObjectMapper;
  
   Class 'com.fasterxml.jackson.databind.ObjectMapper' is not included in App Engine JRE White List
  </code></pre>
  
  <p>this does not result in any Maven  build errors but or any errors in production. but why is the IDE flagging the error.
  Class 'com.fasterxml.jackson.core.type.TypeReference' is not included in App Engine JRE White List</p>