title: How to display p:fileUpload invalidFileMessage in p:growl
body: <p>I'm using <code>&lt;p:fileUpload&gt;</code> which is restricted to PDF only. However, the <code>invalidFileMessage</code> shows inside the <code>&lt;p:fileUpload&gt;</code> component. How can I show it in <code>&lt;p:growl&gt;</code> instead?</p>
  
  <pre><code>&lt;p:fileUpload allowTypes="/(\.|\/)(pdf)$/"
                invalidFileMessage="File is Invalid. Only PDF files are allowed" /&gt;
  </code></pre>