title: How can I convert a Bundle to a PersistableBundle?
body: <p>API21 released the <a href="https://developer.android.com/reference/android/os/PersistableBundle.html" rel="noreferrer"><code>PersistableBundle</code></a> which is a bundle that the system retains for various purposes (<a href="https://developer.android.com/reference/android/app/job/JobInfo.Builder.html" rel="noreferrer"><code>JobScheduler</code> jobs</a>, <a href="https://developer.android.com/reference/android/content/pm/ShortcutInfo.html#getExtras()" rel="noreferrer"><code>ShortcutInfo</code>s</a> etc). I'd like an easy way to convert the <code>Bundle</code>'s that are present in my old code to <code>PersistableBundle</code>'s...how can I do it?</p>