title: Error when starting an activity
body: <p>I'm starting an activity when a button is pressed, and normally (in other apps) haven't had an issue.  But when I press the button in this app, I get an "unable to marshal value" error.</p>
  
  <p>Exact(ish) error from LogCat:</p>
  
  <blockquote>
    <p>03-22 02:49:02.883:
    WARN/System.err(252):
    java.lang.RuntimeException: Parcel:
    unable to marshal value
    {CLASSNAME}@44dcf1b8</p>
  </blockquote>
  
  <p>I feel that this might be related to the extra that I'm passing to the intent.  I'm passing an ArrayList as a serializable to this new intent.  My concern is that the data structure that the ArrayList contains isn't being serialized (as it's a personal data structure).</p>
  
  <p>Is the array list content data structure causing this?  Something else that I'm missing?</p>