private function removeFromHashmapById($id)
    {
        try {
            foreach ($this->_hashmap as $tag => $vars) {
                foreach (array_keys($vars) as $key) {
                    if ($key == $id) {
                        unset($this->_hashmap[$tag][$key]);

                        return $this->saveHashmap();
                    }
                }
            }
        } catch (\Exception $e) {
            $this->log('warning', \sprintf('Unable to remove id from hashmap %s : %s', $id, $e->getMessage()));

            return false;
        }

        return false;
    }