/**
* Creates a singleton instance of the utility class.
*
* @return \AppserverIo\Configuration\ConfigurationUtils The singleton instance
*/
public static function singleton()
{
// query whether we've already loaded an instance or not
if (ConfigurationUtils::$instance == null) {
ConfigurationUtils::$instance = new ConfigurationUtils();
}
// return the singleton instance
return ConfigurationUtils::$instance;
}
