diff --git a/core/lib/Drupal/Component/Plugin/PluginManagerBase.php b/core/lib/Drupal/Component/Plugin/PluginManagerBase.php
index 2cd3992..5f95873 100644
--- a/core/lib/Drupal/Component/Plugin/PluginManagerBase.php
+++ b/core/lib/Drupal/Component/Plugin/PluginManagerBase.php
@@ -75,7 +75,6 @@ public function getInstance(array $options) {
   /**
    * Performs extra processing on plugin definitions.
    */
-  protected function processDefinition(&$definition, $plugin_id) {
-  }
+  protected function processDefinition(&$definition, $plugin_id) {}
 
 }
diff --git a/core/modules/system/tests/modules/plugin_test/lib/Drupal/plugin_test/Plugin/DefaultsTestPluginManager.php b/core/modules/system/tests/modules/plugin_test/lib/Drupal/plugin_test/Plugin/DefaultsTestPluginManager.php
index a1f78eb..a271dc0 100644
--- a/core/modules/system/tests/modules/plugin_test/lib/Drupal/plugin_test/Plugin/DefaultsTestPluginManager.php
+++ b/core/modules/system/tests/modules/plugin_test/lib/Drupal/plugin_test/Plugin/DefaultsTestPluginManager.php
@@ -28,7 +28,7 @@ public function __construct() {
     // Create the object that can be used to return definitions for all the
     // plugins available for this type. Use DefaultsDecorator to test that
     // defaults are applied correctly.
-    $this->discovery = new DefaultsDecorator(StaticDiscovery(), $defaults);
+    $this->discovery = new DefaultsDecorator(new StaticDiscovery(), $defaults);
     $this->factory = new DefaultFactory($this);
 
     // Add a plugin with a custom value.