title: Grails domain List field not being persisted
body: <p>I have a domain class </p>
  
  <pre><code>class Something {
      String name
      String email
      List&lt;String&gt; friends = []
  }
  </code></pre>
  
  <p>In the domain class itself I have a method for Something objects which populates the friends list. But for some reason I am not able to persist this list. and it gets made null on browsing away from the gsp relevant to the domain modifying action.</p>
  
  <p>Any suggestions as to why this is happening?</p>