[OmniFaces utilities 2.0] Get the extension of a resource if any

---

[OmniFaces utilities] The getExtension() method gets the extension of a resource if any. This extension is defined as everything after the last occurrence of a period, including the period itself. E.g. input "index.xhtml" will return ".xhtml'

---

Method:

Usage:

import org.omnifaces.util.ResourcePaths;

...

// returns: .jpg

String extension = ResourcePaths.getExtension("/resources/default/images/rafa.jpg");

// returns: null

String extension = ResourcePaths.getExtension("/WEB-INF/faces-views/");

API GH