title: FileNotFoundException when attempting to read json asset
body: <p>I'm working on an app that needs to send an automatic email on button click. the problem I am currently have is that I need to read a json file and when I pass the path of the json stored in assets into into a new <code>FileReader()</code> I get a file not found <code>Exception</code>. here is how I am getting the path. (wondering if <code>Uri.parse().toString</code> is redundant):</p>
  
  <pre><code>private static final String CLIENT_SECRET_PATH = 
          Uri.parse("file:///android_asset/raw/sample/***.json").toString()
  </code></pre>
  
  <p>and here is the method I am passing it into:</p>
  
  <pre><code>sClientSecrets = GoogleClientSecrets
        .load(jsonFactory, new FileReader(CLIENT_SECRET_PATH));
  </code></pre>
  
  <p>the json file that I am attemping to access is in my apps asset folder under the app root in android project directory (/app/assets/)</p>
  
  <p>I am not sure what I am doing wrong here but I'm sure it is something simple. please help point me in the right direction.</p>