/**
  * Load all enabled modules
  *
  * @return $this
  */
 protected function loadEnabledModules()
 {
     try {
         $this->moduleManager->loadEnabledModules();
     } catch (NotReadableError $e) {
         Logger::error(new IcingaException('Cannot load enabled modules. An exception was thrown:', $e));
     }
     return $this;
 }