Issue #3117857 by longwave, jungle, govind.maloo, Kristen Pol: [Symfony 5] The "Symfony\Component\Debug\BufferingLogger" class is deprecated since Symfony 4.4, use "Symfony\Component\ErrorHandler\BufferingLogger" instead

composer.json

@@ -25,7 +25,7 @@
         "phpspec/prophecy": "^1.7",
         "symfony/css-selector": "^4.4",
         "symfony/phpunit-bridge": "^4.4",
-        "symfony/debug": "^4.4",
+        "symfony/error-handler": "^4.4",
         "justinrainbow/json-schema": "^5.2",
         "symfony/filesystem": "^4.4",
         "symfony/finder": "^4.4",

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "169562790cdb1bc09b9ca4ee4f9944e0",
+    "content-hash": "966c0ed90c2996cad45b441c58d01aa2",
     "packages": [
         {
             "name": "asm89/stack-cors",

composer/Metapackage/DevDependencies/composer.json

@@ -19,8 +19,8 @@
         "phpunit/phpunit": "^8.4.1",
         "symfony/browser-kit": "^4.4",
         "symfony/css-selector": "^4.4",
-        "symfony/debug": "^4.4",
         "symfony/dom-crawler": "^4.4 !=4.4.5",
+        "symfony/error-handler": "^4.4",
         "symfony/filesystem": "^4.4",
         "symfony/finder": "^4.4",
         "symfony/lock": "^4.4",

core/lib/Drupal/Core/Composer/Composer.php

@@ -75,6 +75,7 @@ class Composer {
     'symfony/dom-crawler' => ['Tests'],
     'symfony/filesystem' => ['Tests'],
     'symfony/finder' => ['Tests'],
+    'symfony/error-handler' => ['Tests'],
     'symfony/event-dispatcher' => ['Tests'],
     'symfony/http-foundation' => ['Tests'],
     'symfony/http-kernel' => ['Tests'],

core/modules/field/tests/src/Kernel/EntityReference/EntityReferenceSettingsTest.php

@@ -9,7 +9,7 @@ use Drupal\node\Entity\NodeType;
 use Drupal\KernelTests\KernelTestBase;
 use Drupal\taxonomy\Entity\Vocabulary;
 use Drupal\Tests\field\Traits\EntityReferenceTestTrait;
-use Symfony\Component\Debug\BufferingLogger;
+use Symfony\Component\ErrorHandler\BufferingLogger;
 
 /**
  * Tests entity reference field settings.

core/tests/Drupal/Tests/Listeners/DeprecationListenerTrait.php

@@ -113,7 +113,6 @@ trait DeprecationListenerTrait {
     $dynamic_skipped_deprecations = [
       '%The "[^"]+" class extends "Symfony\\\\Component\\\\EventDispatcher\\\\Event" that is deprecated since Symfony 4\.3, use "Symfony\\\\Contracts\\\\EventDispatcher\\\\Event" instead\.$%',
       '%The "Symfony\\\\Component\\\\Validator\\\\Context\\\\ExecutionContextInterface::.*\(\)" method is considered internal Used by the validator engine. Should not be called by user\s\*\s*code\. It may change without further notice\. You should not extend it from "[^"]+".%',
-      '%The ".*" service relies on the deprecated "Symfony\\\\Component\\\\Debug\\\\BufferingLogger" class\. It should either be deprecated or its implementation upgraded\.%',
       '%The "PHPUnit\\\\Framework\\\\TestCase::addWarning\(\)" method is considered internal%',
       // The following deprecations were not added as part of the original
       // issues and thus were not addressed in time for the 9.0.0 release.
@@ -159,7 +158,6 @@ trait DeprecationListenerTrait {
       'The "Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher::dispatch()" method will require a new "string|null $eventName" argument in the next major version of its interface "Symfony\Contracts\EventDispatcher\EventDispatcherInterface", not defining it is deprecated.',
       'The "Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher::dispatch()" method will require a new "string|null $eventName" argument in the next major version of its parent class "Symfony\Contracts\EventDispatcher\EventDispatcherInterface", not defining it is deprecated.',
       'Passing a command as string when creating a "Symfony\Component\Process\Process" instance is deprecated since Symfony 4.2, pass it as an array of its arguments instead, or use the "Process::fromShellCommandline()" constructor if you need features provided by the shell.',
-      'The "Symfony\Component\Debug\BufferingLogger" class is deprecated since Symfony 4.4, use "Symfony\Component\ErrorHandler\BufferingLogger" instead.',
       // The following deprecation is listed for Twig 2 compatibility when unit
       // testing using \Symfony\Component\ErrorHandler\DebugClassLoader.
       'The "Twig\Environment::getTemplateClass()" method is considered internal. It may change without further notice. You should not extend it from "Drupal\Core\Template\TwigEnvironment".',