title: In Spring-Roo 2.0, the JSON I get does not show relationship between objects.
body: <p>This is a simplified example of the problem I'm having with Spring-Roo 2.0 returning JSON from the RESTful web-service call. Below are the Roo script for 2 classes (company, and user), the database content showing that the user is related to company_id=1, and the JSON I get back for the GET on the user. Note that company=null. That's the problem. Am I doing something wrong?</p>
  
  <p>Roo Script</p>
  
  <pre><code>jpa setup --provider HIBERNATE --database MYSQL 
  --userName pivot --password pivot  --databaseName testdb
  
  entity jpa --class ~.model.MyUser
  field string --fieldName firstName --notNull
  field string --fieldName lastName --notNull
  
  entity jpa --class ~.model.Company
  field string --fieldName name –notNull
  
  field set --fieldName users --type ~.model.MyUser --cardinality ONE_TO_MANY 
        --mappedBy company --comment "Users" --notNull false
  
  repository jpa --all --package ~.repository
  service --all --apiPackage ~.service.api --implPackage ~.service.impl
  web mvc setup
  
  /* ThymeLeaf view layer */
  web mvc view setup --type THYMELEAF
  web mvc templates setup --type THYMELEAF
  web mvc controller --all --package ~.web --responseType THYMELEAF
  
  /* JSON Rest controllers */
  web mvc controller --all --responseType JSON --pathPrefix /json
  
  web mvc finder --all --responseType THYMELEAF
  web mvc finder --all --responseType JSON
  </code></pre>
  
  <p>Database</p>
  
  <pre><code>mysql&gt; select * from my_user;
  +----+------------+-----------+---------+------------+
  | id | first_name | last_name | version | company_id |
  +----+------------+-----------+---------+------------+
  |  1 | First      | Last      |       0 |          1 |
  +----+------------+-----------+---------+------------+
  1 row in set (0.00 sec)
  </code></pre>
  
  <p>JSON</p>
  
  <pre><code>{
      "content": [
          {
              "id": 1,    
              "version": 0,
              "firstName": "First",
              "lastName": "Last",
              "company": null
          }
      ],
      "last": true,
      "totalPages": 1,
      "totalElements": 1,
      "size": 20,
      "number": 0,
      "first": true,
      "numberOfElements": 1,
      "sort": null
  }
  </code></pre>