Merge branch '7.1' into 7.2

* 7.1:
  [Scheduler] Throw an exception when no dispatcher has been passed to a Schedule
  [Mime] Fix TextPart using an unknown File
  Fix autoload configs to avoid warnings when building optimized autoloaders
  Fix autoload configs to avoid warnings when building optimized autoloaders

composer.json

@@ -184,7 +184,8 @@
             "Symfony\\Bridge\\PsrHttpMessage\\": "src/Symfony/Bridge/PsrHttpMessage/",
             "Symfony\\Bridge\\Twig\\": "src/Symfony/Bridge/Twig/",
             "Symfony\\Bundle\\": "src/Symfony/Bundle/",
-            "Symfony\\Component\\": "src/Symfony/Component/"
+            "Symfony\\Component\\": "src/Symfony/Component/",
+            "Symfony\\Runtime\\Symfony\\Component\\": "src/Symfony/Component/Runtime/Internal/"
         },
         "files": [
             "src/Symfony/Component/String/Resources/functions.php"
@@ -193,7 +194,8 @@
             "src/Symfony/Component/Cache/Traits/ValueWrapper.php"
         ],
         "exclude-from-classmap": [
-            "**/Tests/"
+            "**/Tests/",
+            "**/bin/"
         ]
     },
     "autoload-dev": {

src/Symfony/Bridge/PhpUnit/composer.json

@@ -32,7 +32,8 @@
         "files": [ "bootstrap.php" ],
         "psr-4": { "Symfony\\Bridge\\PhpUnit\\": "" },
         "exclude-from-classmap": [
-            "/Tests/"
+            "/Tests/",
+            "/bin/"
         ]
     },
     "bin": [

src/Symfony/Component/Emoji/composer.json

@@ -28,7 +28,8 @@
         "psr-4": { "Symfony\\Component\\Emoji\\": "" },
         "exclude-from-classmap": [
             "/Tests/",
-            "/Resources/data/"
+            "/Resources/data/",
+            "/Resources/bin/"
         ]
     },
     "minimum-stability": "dev"

src/Symfony/Component/Mime/Part/TextPart.php

@@ -125,7 +125,11 @@ public function getName(): ?string
     public function getBody(): string
     {
         if ($this->body instanceof File) {
-            return file_get_contents($this->body->getPath());
+            if (false === $ret = @file_get_contents($this->body->getPath())) {
+                throw new InvalidArgumentException(error_get_last()['message']);
+            }
+
+            return $ret;
         }
 
         if (null === $this->seekable) {

src/Symfony/Component/Mime/Tests/Part/TextPartTest.php

@@ -58,6 +58,16 @@ public function testConstructorWithFile()
         $this->assertSame('content', implode('', iterator_to_array($p->bodyToIterable())));
     }
 
+    public function testConstructorWithUnknownFile()
+    {
+        $p = new TextPart(new File(\dirname(__DIR__).'/Fixtures/unknown.txt'));
+
+        // Exception should be thrown only when the body is accessed
+        $this->expectException(InvalidArgumentException::class);
+        $this->expectExceptionMessageMatches('{Failed to open stream}');
+        $p->getBody();
+    }
+
     public function testConstructorWithNonStringOrResource()
     {
         $this->expectException(\TypeError::class);

src/Symfony/Component/Scheduler/Schedule.php

@@ -141,20 +141,32 @@ public function getSchedule(): static
 
     public function before(callable $listener, int $priority = 0): static
     {
+        if (!$this->dispatcher) {
+            throw new LogicException(sprintf('To register a listener with "%s()", you need to set an event dispatcher on the Schedule.', __METHOD__));
+        }
+
         $this->dispatcher->addListener(PreRunEvent::class, $listener, $priority);
 
         return $this;
     }
 
     public function after(callable $listener, int $priority = 0): static
     {
+        if (!$this->dispatcher) {
+            throw new LogicException(sprintf('To register a listener with "%s()", you need to set an event dispatcher on the Schedule.', __METHOD__));
+        }
+
         $this->dispatcher->addListener(PostRunEvent::class, $listener, $priority);
 
         return $this;
     }
 
     public function onFailure(callable $listener, int $priority = 0): static
     {
+        if (!$this->dispatcher) {
+            throw new LogicException(sprintf('To register a listener with "%s()", you need to set an event dispatcher on the Schedule.', __METHOD__));
+        }
+
         $this->dispatcher->addListener(FailureEvent::class, $listener, $priority);
 
         return $this;

src/Symfony/Component/Validator/composer.json

@@ -56,7 +56,8 @@
     "autoload": {
         "psr-4": { "Symfony\\Component\\Validator\\": "" },
         "exclude-from-classmap": [
-            "/Tests/"
+            "/Tests/",
+            "/Resources/bin/"
         ]
     },
     "minimum-stability": "dev"