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diff --git a/web/core/modules/system/tests/modules/lazy_route_provider_install_test/src/PluginManager.php b/web/core/modules/system/tests/modules/lazy_route_provider_install_test/src/PluginManager.php
new file mode 100644
index 000000000..cac59a732
--- /dev/null
+++ b/web/core/modules/system/tests/modules/lazy_route_provider_install_test/src/PluginManager.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Drupal\lazy_route_provider_install_test;
+
+use Drupal\Component\Annotation\PluginID;
+use Drupal\Core\Cache\CacheBackendInterface;
+use Drupal\Core\Extension\ModuleHandlerInterface;
+use Drupal\Core\Plugin\DefaultPluginManager;
+use Drupal\Core\Routing\UrlGeneratorInterface;
+use Drupal\Core\Url;
+
+class PluginManager extends DefaultPluginManager {
+
+  /**
+   * PluginManager constructor.
+   *
+   * This plugin manager depends on the URL generator to ensure that this
+   * service is instantiated during module installation when the plugin caches
+   * are cleared.
+   *
+   * @param \Traversable $namespaces
+   *   An object that implements \Traversable which contains the root paths
+   *   keyed by the corresponding namespace to look for plugin implementations.
+   * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
+   *   A cache backend.
+   * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
+   *   The module handler.
+   * @param \Drupal\Core\Routing\UrlGeneratorInterface $url_generator
+   *   The URL generator.
+   */
+  public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler, UrlGeneratorInterface $url_generator) {
+    // Generate a URL during construction to prove that URL generation works. If
+    // the route was missing an exception would be thrown. This also forces the
+    // route provider to be initialized very early during a module install.
+    \Drupal::state()->set(__CLASS__, Url::fromRoute('system.admin')->toString());
+    parent::__construct('Plugin/LazyRouteProviderInstallTest', $namespaces, $module_handler, NULL, PluginID::class);
+  }
+
+}