diff --git a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php
index fe2ecd95ad..25169e9bb6 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php
@@ -322,7 +322,7 @@ class TextDescriptor extends Descriptor
      */
     protected function describeContainerAlias(Alias $alias, array $options = array())
     {
-        $options['output']->comment(sprintf("This service is an alias for the service <info>%s</info>\n", (string) $alias));
+        $options['output']->comment(sprintf('This service is an alias for the service <info>%s</info>', (string) $alias));
     }
 
     /**
diff --git a/src/Symfony/Component/Console/Style/SymfonyStyle.php b/src/Symfony/Component/Console/Style/SymfonyStyle.php
index ebaa18dd53..53a7951e01 100644
--- a/src/Symfony/Component/Console/Style/SymfonyStyle.php
+++ b/src/Symfony/Component/Console/Style/SymfonyStyle.php
@@ -170,16 +170,18 @@ class SymfonyStyle extends OutputStyle
     }
 
     /**
-     * {@inheritdoc}
+     * Formats a command comment.
+     *
+     * @param string|array $message
      */
     public function comment($message)
     {
-        $this->autoPrependText();
-
         $messages = is_array($message) ? array_values($message) : array($message);
-        foreach ($messages as $message) {
-            $this->writeln(sprintf(' // %s', $message));
+        foreach ($messages as &$message) {
+            $message = $this->getFormatter()->format($message);
         }
+
+        $this->block($messages, null, null, ' // ');
     }
 
     /**
diff --git a/src/Symfony/Component/Console/Tests/Fixtures/Style/SymfonyStyle/command/command_11.php b/src/Symfony/Component/Console/Tests/Fixtures/Style/SymfonyStyle/command/command_11.php
new file mode 100644
index 0000000000..a2781ddbea
--- /dev/null
+++ b/src/Symfony/Component/Console/Tests/Fixtures/Style/SymfonyStyle/command/command_11.php
@@ -0,0 +1,13 @@
+<?php
+
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Tests\Style\SymfonyStyleWithForcedLineLength;
+
+//Ensure that all lines are aligned to the begin of the first one and start with '//' in a very long line comment
+return function (InputInterface $input, OutputInterface $output) {
+    $output = new SymfonyStyleWithForcedLineLength($input, $output);
+    $output->comment(
+        'Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum'
+    );
+};
diff --git a/src/Symfony/Component/Console/Tests/Fixtures/Style/SymfonyStyle/output/output_11.txt b/src/Symfony/Component/Console/Tests/Fixtures/Style/SymfonyStyle/output/output_11.txt
new file mode 100644
index 0000000000..9983af832a
--- /dev/null
+++ b/src/Symfony/Component/Console/Tests/Fixtures/Style/SymfonyStyle/output/output_11.txt
@@ -0,0 +1,6 @@
+
+ // Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna
+ // aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. 
+ // Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur    
+ // sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum                 
+
diff --git a/src/Symfony/Component/Console/Tests/Fixtures/Style/SymfonyStyle/output/output_5.txt b/src/Symfony/Component/Console/Tests/Fixtures/Style/SymfonyStyle/output/output_5.txt
index 738eb9e606..be4a2db605 100644
--- a/src/Symfony/Component/Console/Tests/Fixtures/Style/SymfonyStyle/output/output_5.txt
+++ b/src/Symfony/Component/Console/Tests/Fixtures/Style/SymfonyStyle/output/output_5.txt
@@ -11,5 +11,8 @@ Lorem ipsum dolor sit amet
  consectetur adipiscing elit
 
 Lorem ipsum dolor sit amet
- // Lorem ipsum dolor sit amet
- // consectetur adipiscing elit
+
+ // Lorem ipsum dolor sit amet                                                                                          
+ //                                                                                                                     
+ // consectetur adipiscing elit                                                                                         
+
diff --git a/src/Symfony/Component/Routing/Loader/AnnotationFileLoader.php b/src/Symfony/Component/Routing/Loader/AnnotationFileLoader.php
index a3a7e0e5ae..b8fc03615f 100644
--- a/src/Symfony/Component/Routing/Loader/AnnotationFileLoader.php
+++ b/src/Symfony/Component/Routing/Loader/AnnotationFileLoader.php
@@ -112,7 +112,24 @@ class AnnotationFileLoader extends FileLoader
             }
 
             if (T_CLASS === $token[0]) {
-                $class = true;
+                // Skip usage of ::class constant
+                $isClassConstant = false;
+                for ($j = $i - 1; $j > 0; --$j) {
+                    if (!isset($tokens[$j][1])) {
+                        break;
+                    }
+
+                    if (T_DOUBLE_COLON === $tokens[$j][0]) {
+                        $isClassConstant = true;
+                        break;
+                    } elseif (!in_array($tokens[$j][0], array(T_WHITESPACE, T_DOC_COMMENT, T_COMMENT))) {
+                        break;
+                    }
+                }
+
+                if (!$isClassConstant) {
+                    $class = true;
+                }
             }
 
             if (T_NAMESPACE === $token[0]) {
diff --git a/src/Symfony/Component/Routing/Tests/Fixtures/AnnotatedClasses/FooTrait.php b/src/Symfony/Component/Routing/Tests/Fixtures/AnnotatedClasses/FooTrait.php
new file mode 100644
index 0000000000..ee8f4b071a
--- /dev/null
+++ b/src/Symfony/Component/Routing/Tests/Fixtures/AnnotatedClasses/FooTrait.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace Symfony\Component\Routing\Tests\Fixtures\AnnotatedClasses;
+
+trait FooTrait
+{
+    public function doBar()
+    {
+        $baz = self::class;
+        if (true) {
+        }
+    }
+}
diff --git a/src/Symfony/Component/Routing/Tests/Loader/AnnotationFileLoaderTest.php b/src/Symfony/Component/Routing/Tests/Loader/AnnotationFileLoaderTest.php
index 9a83994f9a..a022af44be 100644
--- a/src/Symfony/Component/Routing/Tests/Loader/AnnotationFileLoaderTest.php
+++ b/src/Symfony/Component/Routing/Tests/Loader/AnnotationFileLoaderTest.php
@@ -35,6 +35,16 @@ class AnnotationFileLoaderTest extends AbstractAnnotationLoaderTest
         $this->loader->load(__DIR__.'/../Fixtures/AnnotatedClasses/FooClass.php');
     }
 
+    /**
+     * @requires PHP 5.4
+     */
+    public function testLoadTraitWithClassConstant()
+    {
+        $this->reader->expects($this->never())->method('getClassAnnotation');
+
+        $this->loader->load(__DIR__.'/../Fixtures/AnnotatedClasses/FooTrait.php');
+    }
+
     /**
      * @requires PHP 5.6
      */