title: GWT RPC passing objects from server side to client side issue
body: <p>I'm using <strong>GWT-GAE</strong> and faced a bad issue dealing with <strong>RPC</strong>
  Can't use <strong>Entity Classes</strong> on the Server Side within the Client Side </p>
  
  <p>I checked this first answer for that question<a href="https://stackoverflow.com/a/962823/1460591"> [here]</a></p>
  
  <p>but the solution will cause other errors and It's too hard to Implement </p>
  
  <p>So is that a problem to Import server side classes into Client Side classes cuz there is a guy said in the link included above he said :
  <em>There are a couple of things to keep in mind about GWT:
  Server-side classes can import client-side classes, but not vice-versa (usually).
  The client-side can't import any Google App Engine libraries (i.e. com.google.appengine.api.users.User)</em></p>
  
  <p>is that true if so how to overcome this problem I have to use server side classes in the client interface </p>
  
  <p>Hint: I'm Using JDO and No-SQL database (GAE Datastore)</p>
  
  <p>Thanks in Advance </p>