title: Access to /data/data/com.whatsapp
body: <p>Hy, while building an android application for 2.3.3 I got the following error:</p>
  
  <p>I tried to access the files:</p>
  
  <pre><code>private static final String src_msg = "/data/data/com.whatsapp/databases/msgstore.db";
  private static final String src_wa = "/data/data/com.whatsapp/databases/wa.db";
  </code></pre>
  
  <p>I do su before:</p>
  
  <pre><code>Process process = Runtime.getRuntime().exec("su");
  </code></pre>
  
  <p>I tried to copy the files to sdcard via cp command -> no success
  I tried to check if the files exists via <code>new File(src_msg).exists()</code> -> no success</p>
  
  <p>I use the following permissions in manifest:</p>
  
  <pre><code>&lt;uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/&gt;
  </code></pre>
  
  <p>what else is missing here? the popup to allow root comes up and has been accepted.</p>