public function listCredential()
    {
        $this->actionListCredential();
        $this->setTitleListCredential();
        $this->setBreadcrumbListCredential();
        $this->setFilterListCredential();
        $this->setPagerListCredential();

        $this->setData('credentials', $this->getListCredential());
        $this->setData('handlers', $this->credential->getHandlers());
        $this->outputListCredential();
    }