symfony
diff --git a/‎src/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php
Copy file name to clipboardExpand all lines: src/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php
+4-3Lines changed: 4 additions & 3 deletions b/‎src/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php
Copy file name to clipboardExpand all lines: src/Symfony/Bridge/PhpUnit/Legacy/SymfonyTestsListenerTrait.php
+4-3Lines changed: 4 additions & 3 deletions
@@ -18,6 +18,7 @@
 use PHPUnit\Util\Blacklist;
 use Symfony\Bridge\PhpUnit\ClockMock;
 use Symfony\Bridge\PhpUnit\DnsMock;
+use Symfony\Component\Debug\DebugClassLoader as DebugDebugClassLoader;
 use Symfony\Component\ErrorHandler\DebugClassLoader;
 
 /**
@@ -53,8 +54,6 @@ public function __construct(array $mockedNamespaces = array())
             Blacklist::$blacklistedClassNames['\Symfony\Bridge\PhpUnit\Legacy\SymfonyTestsListenerTrait'] = 2;
         }
 
-        $enableDebugClassLoader = class_exists('Symfony\Component\ErrorHandler\DebugClassLoader');
-
         foreach ($mockedNamespaces as $type => $namespaces) {
             if (!\is_array($namespaces)) {
                 $namespaces = array($namespaces);
@@ -73,8 +72,10 @@ public function __construct(array $mockedNamespaces = array())
                 $enableDebugClassLoader = $namespaces && $namespaces[0];
             }
         }
-        if ($enableDebugClassLoader) {
+        if (class_exists('Symfony\Component\ErrorHandler\DebugClassLoader')) {
             DebugClassLoader::enable();
+        } elseif (class_exists('Symfony\Component\Debug\DebugClassLoader')) {
+            DebugDebugClassLoader::enable();
         }
         if (self::$globallyEnabled) {
             $this->state = -2;