ions should not assume that any or
                all of their option keys are present. However, implementations may assume that
                if one of their option keys is present, it's value is non-null and is of the
                expected type.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://d.android.com/reference/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
</dl>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</