diff --git a/module/VuFind/config/module.config.php b/module/VuFind/config/module.config.php
index 3fb4db62d2bc79e13b2d64090ac9219370baca65..7caf5bd9356635221f50ae4c68b1df9340ae7b1b 100644
--- a/module/VuFind/config/module.config.php
+++ b/module/VuFind/config/module.config.php
@@ -249,7 +249,7 @@ $config = [
             'VuFind\Session\Settings' => 'VuFind\Session\Settings',
         ],
         'initializers' => [
-            'VuFind\ServiceManager\Initializer::initInstance',
+            'VuFind\ServiceManager\ServiceInitializer',
         ],
         'aliases' => [
             'mvctranslator' => 'VuFind\Translator',
@@ -259,7 +259,7 @@ $config = [
     'translator' => [],
     'view_helpers' => [
         'initializers' => [
-            'VuFind\ServiceManager\Initializer::initZendPlugin',
+            'VuFind\ServiceManager\ZendPluginInitializer',
         ],
     ],
     'view_manager' => [
diff --git a/module/VuFind/src/VuFind/Controller/CoverController.php b/module/VuFind/src/VuFind/Controller/CoverController.php
index 8e62c53bfe0d3fb10e39cec7f9beb21b510ff538..f71d0ce3072d64a71c5b8c510f7c338376917cf3 100644
--- a/module/VuFind/src/VuFind/Controller/CoverController.php
+++ b/module/VuFind/src/VuFind/Controller/CoverController.php
@@ -83,9 +83,8 @@ class CoverController extends AbstractBase
                 $this->serviceLocator->get('VuFind\Http')->createClient(),
                 $cacheDir
             );
-            \VuFind\ServiceManager\Initializer::initInstance(
-                $this->loader, $this->serviceLocator
-            );
+            $initializer = new \VuFind\ServiceManager\ServiceInitializer();
+            $initializer->initialize($this->loader, $this->serviceLocator);
         }
         return $this->loader;
     }
diff --git a/module/VuFind/src/VuFind/Controller/QRCodeController.php b/module/VuFind/src/VuFind/Controller/QRCodeController.php
index 6937ff1151d070ef8218d5312467d5d12c83cfc9..d5e286e496f669b426bc1a9a6b00eaafb7606c20 100644
--- a/module/VuFind/src/VuFind/Controller/QRCodeController.php
+++ b/module/VuFind/src/VuFind/Controller/QRCodeController.php
@@ -62,9 +62,8 @@ class QRCodeController extends AbstractBase
                 $this->getConfig(),
                 $this->serviceLocator->get('VuFindTheme\ThemeInfo')
             );
-            \VuFind\ServiceManager\Initializer::initInstance(
-                $this->loader, $this->serviceLocator
-            );
+            $initializer = new \VuFind\ServiceManager\ServiceInitializer();
+            $initializer->initialize($this->loader, $this->serviceLocator);
         }
         return $this->loader;
     }
diff --git a/module/VuFind/src/VuFind/ServiceManager/AbstractPluginManager.php b/module/VuFind/src/VuFind/ServiceManager/AbstractPluginManager.php
index de6dbe75522b751b2066fb48b16afddb0aa0ccc2..f766a7d4574e183060f149a7b809705a3cafac02 100644
--- a/module/VuFind/src/VuFind/ServiceManager/AbstractPluginManager.php
+++ b/module/VuFind/src/VuFind/ServiceManager/AbstractPluginManager.php
@@ -57,7 +57,7 @@ abstract class AbstractPluginManager extends Base
     ) {
         parent::__construct($configOrContainerInstance, $v3config);
         $this->addInitializer(
-            ['VuFind\ServiceManager\Initializer', 'initPlugin'], false
+            'VuFind\ServiceManager\VuFindPluginInitializer', false
         );
     }
 
diff --git a/module/VuFind/src/VuFind/ServiceManager/Initializer.php b/module/VuFind/src/VuFind/ServiceManager/ServiceInitializer.php
similarity index 67%
rename from module/VuFind/src/VuFind/ServiceManager/Initializer.php
rename to module/VuFind/src/VuFind/ServiceManager/ServiceInitializer.php
index 1872c148fdd6f28bb256765574dd0a52514a6f1a..11cf43e73a07d33527400a365f51f7233ed60c5c 100644
--- a/module/VuFind/src/VuFind/ServiceManager/Initializer.php
+++ b/module/VuFind/src/VuFind/ServiceManager/ServiceInitializer.php
@@ -27,7 +27,7 @@
  */
 namespace VuFind\ServiceManager;
 
-use Zend\ServiceManager\ServiceManager;
+use Zend\ServiceManager\ServiceLocatorInterface;
 
 /**
  * VuFind Service Initializer
@@ -38,16 +38,16 @@ use Zend\ServiceManager\ServiceManager;
  * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
  * @link     https://vufind.org/wiki/development Wiki
  */
-class Initializer
+class ServiceInitializer implements \Zend\ServiceManager\InitializerInterface
 {
     /**
      * Check if the record cache is enabled within a service manager.
      *
-     * @param ServiceManager $sm Service manager
+     * @param ServiceLocatorInterface $sm Service manager
      *
      * @return bool
      */
-    protected static function isCacheEnabled(ServiceManager $sm)
+    protected function isCacheEnabled(ServiceLocatorInterface $sm)
     {
         // Use static cache to save time on repeated lookups:
         static $enabled = null;
@@ -72,12 +72,12 @@ class Initializer
     /**
      * Given an instance and a Service Manager, initialize the instance.
      *
-     * @param object         $instance Instance to initialize
-     * @param ServiceManager $sm       Service manager
+     * @param object                  $instance Instance to initialize
+     * @param ServiceLocatorInterface $sm       Service manager
      *
      * @return object
      */
-    public static function initInstance($instance, ServiceManager $sm)
+    public function initialize($instance, ServiceLocatorInterface $sm)
     {
         if ($instance instanceof \VuFind\Db\Table\DbTableAwareInterface) {
             $instance->setDbTableManager($sm->get('VuFind\DbTablePluginManager'));
@@ -93,46 +93,10 @@ class Initializer
         }
         // Only inject cache if configuration enabled (to save resources):
         if ($instance instanceof \VuFind\Record\Cache\RecordCacheAwareInterface
-            && static::isCacheEnabled($sm)
+            && $this->isCacheEnabled($sm)
         ) {
             $instance->setRecordCache($sm->get('VuFind\RecordCache'));
         }
         return $instance;
     }
-
-    /**
-     * Given a Zend Framework Plugin Manager, initialize the instance.
-     *
-     * @param object                                     $instance Instance to
-     * initialize
-     * @param \Zend\ServiceManager\AbstractPluginManager $manager  Plugin manager
-     *
-     * @return object
-     */
-    public static function initZendPlugin($instance,
-        \Zend\ServiceManager\AbstractPluginManager $manager
-    ) {
-        $sm = $manager->getServiceLocator();
-        if (null !== $sm) {
-            static::initInstance($instance, $sm);
-        }
-        return $instance;
-    }
-
-    /**
-     * Given an instance and a Plugin Manager, initialize the instance.
-     *
-     * @param object                $instance Instance to initialize
-     * @param AbstractPluginManager $manager  Plugin manager
-     *
-     * @return object
-     */
-    public static function initPlugin($instance, AbstractPluginManager $manager)
-    {
-        static::initZendPlugin($instance, $manager);
-        if (method_exists($instance, 'setPluginManager')) {
-            $instance->setPluginManager($manager);
-        }
-        return $instance;
-    }
 }
diff --git a/module/VuFind/src/VuFind/ServiceManager/VuFindPluginInitializer.php b/module/VuFind/src/VuFind/ServiceManager/VuFindPluginInitializer.php
new file mode 100644
index 0000000000000000000000000000000000000000..3f02894dea077f5b5230ffb38871056354f7787b
--- /dev/null
+++ b/module/VuFind/src/VuFind/ServiceManager/VuFindPluginInitializer.php
@@ -0,0 +1,58 @@
+<?php
+/**
+ * VuFind Plugin Initializer
+ *
+ * PHP version 5
+ *
+ * Copyright (C) Villanova University 2010.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * @category VuFind
+ * @package  ServiceManager
+ * @author   Demian Katz <demian.katz@villanova.edu>
+ * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link     https://vufind.org/wiki/development Wiki
+ */
+namespace VuFind\ServiceManager;
+
+use Zend\ServiceManager\ServiceLocatorInterface;
+
+/**
+ * VuFind Plugin Initializer
+ *
+ * @category VuFind
+ * @package  ServiceManager
+ * @author   Demian Katz <demian.katz@villanova.edu>
+ * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link     https://vufind.org/wiki/development Wiki
+ */
+class VuFindPluginInitializer extends ZendPluginInitializer
+{
+    /**
+     * Given an instance and a Plugin Manager, initialize the instance.
+     *
+     * @param object                  $instance Instance to initialize
+     * @param ServiceLocatorInterface $manager  Plugin manager
+     *
+     * @return object
+     */
+    public function initialize($instance, ServiceLocatorInterface $manager)
+    {
+        if (method_exists($instance, 'setPluginManager')) {
+            $instance->setPluginManager($manager);
+        }
+        return parent::initialize($instance, $manager);
+    }
+}
diff --git a/module/VuFind/src/VuFind/ServiceManager/ZendPluginInitializer.php b/module/VuFind/src/VuFind/ServiceManager/ZendPluginInitializer.php
new file mode 100644
index 0000000000000000000000000000000000000000..17896becc23f87be1ca46c16e20a7f75be33f6e3
--- /dev/null
+++ b/module/VuFind/src/VuFind/ServiceManager/ZendPluginInitializer.php
@@ -0,0 +1,57 @@
+<?php
+/**
+ * Zend Framework Plugin Initializer
+ *
+ * PHP version 5
+ *
+ * Copyright (C) Villanova University 2010.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * @category VuFind
+ * @package  ServiceManager
+ * @author   Demian Katz <demian.katz@villanova.edu>
+ * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link     https://vufind.org/wiki/development Wiki
+ */
+namespace VuFind\ServiceManager;
+
+use Zend\ServiceManager\ServiceLocatorInterface;
+
+/**
+ * Zend Framework Plugin Initializer
+ *
+ * @category VuFind
+ * @package  ServiceManager
+ * @author   Demian Katz <demian.katz@villanova.edu>
+ * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
+ * @link     https://vufind.org/wiki/development Wiki
+ */
+class ZendPluginInitializer extends ServiceInitializer
+{
+    /**
+     * Given an instance and a Plugin Manager, initialize the instance.
+     *
+     * @param object                  $instance Instance to initialize
+     * @param ServiceLocatorInterface $manager  Plugin manager
+     *
+     * @return object
+     */
+    public function initialize($instance, ServiceLocatorInterface $manager)
+    {
+        $sm = $manager->getServiceLocator();
+        return (null !== $sm)
+            ? parent::initialize($instance, $sm) : $instance;
+    }
+}
diff --git a/module/VuFind/tests/integration-tests/src/VuFindTest/Auth/ShibbolethTest.php b/module/VuFind/tests/integration-tests/src/VuFindTest/Auth/ShibbolethTest.php
index e08fb39ef404e9a25318384405ead3ba77fa7cbb..4387bef40d2499a426c778f5d6ba1e78b5c374ed 100644
--- a/module/VuFind/tests/integration-tests/src/VuFindTest/Auth/ShibbolethTest.php
+++ b/module/VuFind/tests/integration-tests/src/VuFindTest/Auth/ShibbolethTest.php
@@ -80,9 +80,8 @@ class ShibbolethTest extends \VuFindTest\Unit\DbTestCase
             $config = $this->getAuthConfig();
         }
         $obj = new Shibboleth($this->createMock('Zend\Session\ManagerInterface'));
-        \VuFind\ServiceManager\Initializer::initInstance(
-            $obj, $this->getServiceManager()
-        );
+        $initializer = new \VuFind\ServiceManager\ServiceInitializer();
+        $initializer->initialize($obj, $this->getServiceManager());
         $obj->setConfig($config);
         return $obj;
     }