Zend_Http_Client::getAdapter PHP Method

    public function getAdapter()
    {
        if (null === $this->adapter) {
            $this->setAdapter($this->config['adapter']);
        }
        return $this->adapter;
    }

 public function processException(Exception $exception)
 {
     if ($exception instanceof Zend_Exception) {
         $this->_httpClient->getAdapter()->close();
     }
     parent::processException($exception);
 }