diff --git a/Compiler/AbstractRecursivePass.php b/Compiler/AbstractRecursivePass.php
index f18baa57c..1b744d611 100644
--- a/Compiler/AbstractRecursivePass.php
+++ b/Compiler/AbstractRecursivePass.php
@@ -82,7 +82,7 @@ protected function processValue(mixed $value, bool $isRoot = false)
                     continue;
                 }
                 if ($isRoot) {
-                    if ($v->hasTag('container.excluded')) {
+                    if ($v instanceof Definition && $v->hasTag('container.excluded')) {
                         continue;
                     }
                     $this->currentId = $k;
diff --git a/Compiler/CheckExceptionOnInvalidReferenceBehaviorPass.php b/Compiler/CheckExceptionOnInvalidReferenceBehaviorPass.php
index 7a6dd7687..bbf318982 100644
--- a/Compiler/CheckExceptionOnInvalidReferenceBehaviorPass.php
+++ b/Compiler/CheckExceptionOnInvalidReferenceBehaviorPass.php
@@ -60,15 +60,7 @@ protected function processValue(mixed $value, bool $isRoot = false): mixed
         if (isset($this->serviceLocatorContextIds[$currentId])) {
             $currentId = $this->serviceLocatorContextIds[$currentId];
             $locator = $this->container->getDefinition($this->currentId)->getFactory()[0];
-
-            foreach ($locator->getArgument(0) as $k => $v) {
-                if ($v->getValues()[0] === $value) {
-                    if ($k !== $id) {
-                        $currentId = $k.'" in the container provided to "'.$currentId;
-                    }
-                    throw new ServiceNotFoundException($id, $currentId, null, $this->getAlternatives($id));
-                }
-            }
+            $this->throwServiceNotFoundException($value, $currentId, $locator->getArgument(0));
         }
 
         if ('.' === $currentId[0] && $graph->hasNode($currentId)) {
@@ -82,14 +74,21 @@ protected function processValue(mixed $value, bool $isRoot = false): mixed
                     $currentId = $sourceId;
                     break;
                 }
+
+                if (isset($this->serviceLocatorContextIds[$sourceId])) {
+                    $currentId = $this->serviceLocatorContextIds[$sourceId];
+                    $locator = $this->container->getDefinition($this->currentId);
+                    $this->throwServiceNotFoundException($value, $currentId, $locator->getArgument(0));
+                }
             }
         }
 
-        throw new ServiceNotFoundException($id, $currentId, null, $this->getAlternatives($id));
+        $this->throwServiceNotFoundException($value, $currentId, $value);
     }
 
-    private function getAlternatives(string $id): array
+    private function throwServiceNotFoundException(Reference $ref, string $sourceId, $value): void
     {
+        $id = (string) $ref;
         $alternatives = [];
         foreach ($this->container->getServiceIds() as $knownId) {
             if ('' === $knownId || '.' === $knownId[0] || $knownId === $this->currentId) {
@@ -102,6 +101,28 @@ private function getAlternatives(string $id): array
             }
         }
 
-        return $alternatives;
+        $pass = new class() extends AbstractRecursivePass {
+            public Reference $ref;
+            public string $sourceId;
+            public array $alternatives;
+
+            public function processValue(mixed $value, bool $isRoot = false): mixed
+            {
+                if ($this->ref !== $value) {
+                    return parent::processValue($value, $isRoot);
+                }
+                $sourceId = $this->sourceId;
+                if (null !== $this->currentId && $this->currentId !== (string) $value) {
+                    $sourceId = $this->currentId.'" in the container provided to "'.$sourceId;
+                }
+
+                throw new ServiceNotFoundException((string) $value, $sourceId, null, $this->alternatives);
+            }
+        };
+        $pass->ref = $ref;
+        $pass->sourceId = $sourceId;
+        $pass->alternatives = $alternatives;
+
+        $pass->processValue($value, true);
     }
 }
diff --git a/Dumper/PhpDumper.php b/Dumper/PhpDumper.php
index 81b500c5a..23e65483b 100644
--- a/Dumper/PhpDumper.php
+++ b/Dumper/PhpDumper.php
@@ -624,7 +624,9 @@ private function generateProxyClasses(): array
                 $proxyCode = substr(self::stripComments($proxyCode), 5);
             }
 
-            $proxyClass = explode(' ', $this->inlineRequires ? substr($proxyCode, \strlen($code)) : $proxyCode, 3)[1];
+            $proxyClass = $this->inlineRequires ? substr($proxyCode, \strlen($code)) : $proxyCode;
+            $i = strpos($proxyClass, 'class');
+            $proxyClass = substr($proxyClass, 6 + $i, strpos($proxyClass, ' ', 7 + $i) - $i - 6);
 
             if ($this->asFiles || $this->namespace) {
                 $proxyCode .= "\nif (!\\class_exists('$proxyClass', false)) {\n    \\class_alias(__NAMESPACE__.'\\\\$proxyClass', '$proxyClass', false);\n}\n";
diff --git a/LazyProxy/PhpDumper/LazyServiceDumper.php b/LazyProxy/PhpDumper/LazyServiceDumper.php
index b1df5f0f0..0d4426c44 100644
--- a/LazyProxy/PhpDumper/LazyServiceDumper.php
+++ b/LazyProxy/PhpDumper/LazyServiceDumper.php
@@ -105,7 +105,7 @@ public function getProxyCode(Definition $definition, ?string $id = null): string
 
         if ($asGhostObject) {
             try {
-                return 'class '.$proxyClass.ProxyHelper::generateLazyGhost($class);
+                return (\PHP_VERSION_ID >= 80200 && $class?->isReadOnly() ? 'readonly ' : '').'class '.$proxyClass.ProxyHelper::generateLazyGhost($class);
             } catch (LogicException $e) {
                 throw new InvalidArgumentException(sprintf('Cannot generate lazy ghost for service "%s".', $id ?? $definition->getClass()), 0, $e);
             }
diff --git a/Tests/Compiler/CheckExceptionOnInvalidReferenceBehaviorPassTest.php b/Tests/Compiler/CheckExceptionOnInvalidReferenceBehaviorPassTest.php
index bce810364..04a121d63 100644
--- a/Tests/Compiler/CheckExceptionOnInvalidReferenceBehaviorPassTest.php
+++ b/Tests/Compiler/CheckExceptionOnInvalidReferenceBehaviorPassTest.php
@@ -84,14 +84,20 @@ public function testProcessDefinitionWithBindings()
         $this->addToAssertionCount(1);
     }
 
-    public function testWithErroredServiceLocator()
+    /**
+     * @testWith [true]
+     *           [false]
+     */
+    public function testWithErroredServiceLocator(bool $inline)
     {
         $container = new ContainerBuilder();
 
         ServiceLocatorTagPass::register($container, ['foo' => new Reference('baz')], 'bar');
 
         (new AnalyzeServiceReferencesPass())->process($container);
-        (new InlineServiceDefinitionsPass())->process($container);
+        if ($inline) {
+            (new InlineServiceDefinitionsPass())->process($container);
+        }
 
         $this->expectException(ServiceNotFoundException::class);
         $this->expectExceptionMessage('The service "foo" in the container provided to "bar" has a dependency on a non-existent service "baz".');
@@ -99,14 +105,20 @@ public function testWithErroredServiceLocator()
         $this->process($container);
     }
 
-    public function testWithErroredHiddenService()
+    /**
+     * @testWith [true]
+     *           [false]
+     */
+    public function testWithErroredHiddenService(bool $inline)
     {
         $container = new ContainerBuilder();
 
         ServiceLocatorTagPass::register($container, ['foo' => new Reference('foo')], 'bar');
 
         (new AnalyzeServiceReferencesPass())->process($container);
-        (new InlineServiceDefinitionsPass())->process($container);
+        if ($inline) {
+            (new InlineServiceDefinitionsPass())->process($container);
+        }
 
         $this->expectException(ServiceNotFoundException::class);
         $this->expectExceptionMessage('The service "bar" has a dependency on a non-existent service "foo".');
diff --git a/Tests/Dumper/YamlDumperTest.php b/Tests/Dumper/YamlDumperTest.php
index 68931050b..f9ff3fff7 100644
--- a/Tests/Dumper/YamlDumperTest.php
+++ b/Tests/Dumper/YamlDumperTest.php
@@ -163,7 +163,11 @@ public function testDumpHandlesEnumeration()
         $container->compile();
         $dumper = new YamlDumper($container);
 
-        $this->assertEquals(file_get_contents(self::$fixturesPath.'/yaml/services_with_enumeration.yml'), $dumper->dump());
+        if (str_starts_with(Yaml::dump(FooUnitEnum::BAR), '!php/enum')) {
+            $this->assertEquals(file_get_contents(self::$fixturesPath.'/yaml/services_with_enumeration_enum_tag.yml'), $dumper->dump());
+        } else {
+            $this->assertEquals(file_get_contents(self::$fixturesPath.'/yaml/services_with_enumeration.yml'), $dumper->dump());
+        }
     }
 
     /**
diff --git a/Tests/Fixtures/ReadOnlyClass.php b/Tests/Fixtures/ReadOnlyClass.php
new file mode 100644
index 000000000..b247ea216
--- /dev/null
+++ b/Tests/Fixtures/ReadOnlyClass.php
@@ -0,0 +1,20 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\DependencyInjection\Tests\Fixtures;
+
+readonly class ReadOnlyClass
+{
+    public function say(): string
+    {
+        return 'hello';
+    }
+}
diff --git a/Tests/Fixtures/yaml/services_with_enumeration_enum_tag.yml b/Tests/Fixtures/yaml/services_with_enumeration_enum_tag.yml
new file mode 100644
index 000000000..c34ce4f8e
--- /dev/null
+++ b/Tests/Fixtures/yaml/services_with_enumeration_enum_tag.yml
@@ -0,0 +1,13 @@
+parameters:
+    unit_enum: !php/enum Symfony\Component\DependencyInjection\Tests\Fixtures\FooUnitEnum::BAR
+    enum_array: [!php/enum Symfony\Component\DependencyInjection\Tests\Fixtures\FooUnitEnum::BAR, !php/enum Symfony\Component\DependencyInjection\Tests\Fixtures\FooUnitEnum::FOO]
+
+services:
+    service_container:
+        class: Symfony\Component\DependencyInjection\ContainerInterface
+        public: true
+        synthetic: true
+    Symfony\Component\DependencyInjection\Tests\Fixtures\FooClassWithEnumAttribute:
+        class: Symfony\Component\DependencyInjection\Tests\Fixtures\FooClassWithEnumAttribute
+        public: true
+        arguments: [!php/const 'Symfony\Component\DependencyInjection\Tests\Fixtures\FooUnitEnum::BAR']
diff --git a/Tests/LazyProxy/PhpDumper/LazyServiceDumperTest.php b/Tests/LazyProxy/PhpDumper/LazyServiceDumperTest.php
index 064bfc3cc..467972a88 100644
--- a/Tests/LazyProxy/PhpDumper/LazyServiceDumperTest.php
+++ b/Tests/LazyProxy/PhpDumper/LazyServiceDumperTest.php
@@ -16,6 +16,7 @@
 use Symfony\Component\DependencyInjection\Definition;
 use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
 use Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\LazyServiceDumper;
+use Symfony\Component\DependencyInjection\Tests\Fixtures\ReadOnlyClass;
 
 class LazyServiceDumperTest extends TestCase
 {
@@ -52,6 +53,18 @@ public function testInvalidClass()
         $this->expectExceptionMessage('Invalid "proxy" tag for service "stdClass": class "stdClass" doesn\'t implement "Psr\Container\ContainerInterface".');
         $dumper->getProxyCode($definition);
     }
+
+    /**
+     * @requires PHP 8.3
+     */
+    public function testReadonlyClass()
+    {
+        $dumper = new LazyServiceDumper();
+        $definition = (new Definition(ReadOnlyClass::class))->setLazy(true);
+
+        $this->assertTrue($dumper->isProxyCandidate($definition));
+        $this->assertStringContainsString('readonly class ReadOnlyClassGhost', $dumper->getProxyCode($definition));
+    }
 }
 
 final class TestContainer implements ContainerInterface