Change record status: 
Project: 
Introduced in branch: 
10.3.x
Introduced in version: 
10.3.0
Description: 

Drupal\Core\Cache\CacheCollector provided a method to normalize lock names before trying to use them:

    $cid = $this->getCid();
    $lock_name = $this->normalizeLockName($cid . ':' . __CLASS__);

However, the lock service already normalizes names so this is no longer necessary. If you were calling normalizeLockName(), just remove the method call and pass the lock name directly.

Impacts: 
Module developers