--- /dev/null
+<?php
+
+namespace Drupal\Core\KeyValueStore;
+
+/**
+ * Defines the key/value store factory for the null backend.
+ */
+class KeyValueNullExpirableFactory implements KeyValueExpirableFactoryInterface {
+
+ /**
+ * {@inheritdoc}
+ */
+ public function get($collection) {
+ return new NullStorageExpirable($collection);
+ }
+
+}